CVE-2024-6387

CVE-2024-6387 is a remote code-execution vulnerability in OpenSSH’s server (sshd) caused by a race condition in a signal handler that may run after a client fails to authenticate within LoginGraceTime. The issue is exploitable by an unauthenticated, remote attacker on glibc-based Linux systems, p...

CVE-2014-6271

CVE-2014-6271 (Shellshock) affects GNU Bash up to 4.3, enabling remote code execution by processing trailing strings after function definitions in environment variables. Exploitation vectors include OpenSSH ForceCommand, mod_cgi/mod_cgid in Apache, DHCP client scripts, and other environment-passi...

CVE-2014-7169

CVE-2014-7169 affects GNU Bash up to 4.3, where parsing of function definitions in environment variables can be exploited to run commands or impact other attributes across privilege boundaries (notably via ForceCommand in OpenSSH sshd and via mod_cgi/mod_cgid in Apache, as well as DHCP client scr...

CVE-2020-25684

CVE-2020-25684, 25685, 25686 (dnsmasq) : The advisory indicates dnsmasq before version 2.83 is vulnerable in three related ways involving forwarded/replied queries and query matching. CVE-2020-25684 (insufficient validation) occurs when dnsmasq processes a forwarded reply: it checks reply_query()...

CVE-2020-25686

CVE-2020-25686 affects dnsmasq prior to version 2.83. The flaw: when receiving a query, dnsmasq does not check for an existing pending request for the same name and forwards a new one, allowing up to 150 outstanding queries and enabling an off-path attacker to substantially reduce the work needed...

CVE-2020-25685

CVE-2020-25685 affects dnsmasq up to version 2.83. The issue arises from how forward.c:reply_query() matches replies to forwarded queries: it uses a weak hash of the query name, allowing an off-path attacker to forge replies by exploiting hash collisions. This vulnerability enables DNS cache pois...

CVE-2017-14491

CVE-2017-14491 : Heap-based buffer overflow in dnsmasq before 2.78 allows remote attackers to crash the service or potentially execute arbitrary code via a crafted DNS response. Affected component: dnsmasq. Root cause described as a heap overflow in the DNS reply-building path. Public details in ...

CVE-2020-10188

CVE-2020-10188 affects the telnetd server of netkit telnet (up to 0.17). The issue is a buffer overflow caused by incorrect bounds checks in handling short writes and urgent data (netclear/nextitem), enabling remote arbitrary code execution by unauthenticated attackers. Connected advisories confi...

CVE-2017-18017

CVE-2017-18017 affects the Linux kernel’s tcpmss_mangle_packet in net/netfilter/xt_TCPMSS.c. When xt_TCPMSS is used in an iptables action, a remote attacker can trigger a use-after-free and memory corruption, leading to a denial of service. Affected versions are Linux kernel before 4.11, and 4.9....

CVE-2023-24509

CVE-2023-24509 affects Arista EOS on modular platforms with dual redundant supervisors and redundancy protocol set to RPR or SSO. A privileged escalation occurs when an unprivileged user can log into the standby supervisor as root, using valid credentials; local access is assumed. The issue has b...

CVE-2019-17596

CVE-2019-17596 affects Go (Go before 1.12.11 and 1.3.x before 1.13.2) and can cause a panic when processing network traffic that contains an invalid DSA public key, e.g., traffic between clients and servers that verify client certificates. Connected advisories show affected Go versions and explic...

CVE-2026-7473

CVE-2026-7473 affects Arista EOS devices where a tunnel decapsulation config (VXLAN, decap-groups, GRE) can cause the switch to decapsulate and forward unintended tunneled packets whose destination matches the decap IP. Root cause: lack of verification of the tunnel protocol type leading to proce...

CVE-2023-24511

CVE-2023-24511 affects Arista EOS where a specially crafted SNMP packet can cause a memory leak in the snmpd process, potentially terminating snmpd and causing SNMP requests to time out, with memory exhaustion possible for other processes. Public documents consistently describe this as a memory-l...

CVE-2015-6815

CVE-2015-6815 affects QEMU with e1000 NIC emulation. The process_tx_desc path in hw/net/e1000.c improperly handles transmit descriptor data, enabling a remote attacker within the local network to trigger an infinite loop and guest crash (Denial of Service). This vulnerability is tied to QEMU befo...

CVE-2015-3214

CVE-2015-3214 affects QEMU prior to 2.3.1 (pit_ioport_read in i8254.c) and Linux kernel prior to 2.6.33. The flaw does not distinguish between read and write lengths, potentially allowing a privileged guest user (with PIT emulation enabled) to trigger an invalid index and cause arbitrary host cod...

CVE-2021-28503

The CVE-2021-28503 issue affects Arista EOS, where eAPI may skip re-evaluating credentials when certificate-based authentication is used, allowing remote access via eAPI. Affected EOS trains include 4.22.x–4.26.x, with fixes in 4.26.3+, 4.25.6+, 4.24.8+, and 4.23.10+ as per Arista Security Adviso...

CVE-2015-5165

CVE-2015-5165 affects the RTL8139 emulation in QEMU (C+ mode offload) used by Xen 4.5.x and earlier. A remote attacker could read heap memory in the QEMU process via unspecified vectors, potentially exposing host data. Public sources in connected docs document this as an information-leak flaw in ...

CVE-2015-3209

CVE-2015-3209 : Heap-based buffer overflow in the QEMU PCNET network device allows remote code execution via crafted packet sequences (TXSTATUS_STARTPACKET then TXSTATUS_DEVICEOWNS). This is a QEMU vulnerability discussed in multiple advisories (notably Arista/Security Advisory 0013 and F5/Multi-...

CVE-2015-5745

CVE-2015-5745: A buffer overflow in QEMU’s virtio-serial device (send_control_msg in hw/char/virtio-serial-bus.c) allows a crafted virtio control message from a guest to crash the QEMU process. Affects QEMU before 2.4.0. Multiple sources (Debian DSA-3349-1; Gentoo GLSA 201602-01; Arista advisory)...

CVE-2015-5239

CVE-2015-5239 : QEMU’s VNC display driver is vulnerable to an integer overflow in the vnc_client_read()/protocol_client_msg() paths when processing a CLIENT_CUT_TEXT message, which can cause an infinite loop and crash the QEMU process. Affected products include QEMU with the VNC display driver pr...

CVE-2015-5278

The CVE-2015-5278 entry concerns QEMU’s ne2000_receive() in hw/net/ne2000.c, where an attacker could trigger an infinite loop and crash the QEMU instance, potentially enabling arbitrary code execution via crafted network packets. Public sources in the CVE context confirm the vulnerability exists ...

CVE-2015-6855

CVE-2015-6855 affects QEMU, where hw/ide/core.c does not properly restrict ATAPI device commands. The flaw allows a guest user to cause a denial of service (and potentially other impact) by issuing certain IDE commands, demonstrated by a WIN_READ_NATIVE_MAX to an empty drive that triggers a divid...

CVE-2021-28504

CVE-2021-28504 affects Arista Strata/EOS platforms with TCAM profile enabled where a port IPv4 ACL rule matching VXLAN protocol causes the rule and later ACL rules to fail matching the IP protocol field. This misbehavior can lead to improper packet handling and potential traffic leakage. Arista’s...

CVE-2023-24510

CVE-2023-24510 affects Arista EOS on multiple platforms. A malformed DHCP packet can cause the DHCP relay agent to restart, leading to partial denial of service of the DHCP relay service. The issue is present in EOS trains listed by Arista’s advisory and is triggered when two or more DHCP server ...

CVE-2020-15898

CVE-2020-15898 affects Arista EOS: malformed packets can be forwarded across VLAN boundaries in one direction, exploitable by unidirectional traffic (e.g., UDP). Affected: EOS X-Series and 7170 platforms with specific 4.21.x–4.24.x trains (see advisory 56). Impact is VLAN-crossing DoS-like behavi...

CVE-2023-24548

CVE-2023-24548 affects Arista EOS on platforms with VXLAN enabled. Malformed or truncated VXLAN packets received and forwarded in hardware can render egress ports unable to forward traffic. The issue is mitigated by upgrading EOS to remediated releases; Arista lists fixed releases including 4.30....

CVE-2020-26569

Summary: CVE-2020-26569 affects Arista EOS in EVPN VXLAN with SVIs. Malformed EVPN VXLAN packets can cause incorrect MAC-to-IP bindings, resulting in traffic being discarded or forwarded across VLAN boundaries. Affected releases (EOS): 4.21.x ≤ 4.21.12M, 4.22.x ≤ 4.22.7M, 4.23.x ≤ 4.23.5M, 4.24.x...

CVE-2021-28511

The CVE-2021-28511 issue affects Arista EOS. A NAT ACL with a permit action can match traffic in a way that bypasses the Security ACL drop rule, possibly allowing a host IP that falls within both NAT-allowed and Security-ACL-denied ranges to be forwarded instead of dropped. This is an ACL bypass ...

CVE-2020-24360

Summary of CVE-2020-24360 (Arista EOS ARP issue) An ARP-related vulnerability affects Arista EOS on 7500R3, 7800R3, and 7280R3 platforms running EOS releases in the 4.24.x, 4.23.x, or 4.22.x trains. The issue can cause a kernel crash leading to a device reload, with a noted crash signature in aff...

CVE-2023-3646

The CVE-2023-3646 issue affects Arista EOS when mirroring to multiple destinations is configured, causing an internal system error that can trigger a kernel panic and system reload. The issue is tracked through BUG829136, requiring BUG765111 not to be impacted to be exploitable. Mitigation in off...

CVE-2021-28505

On Arista EOS platforms, CVE-2021-28505 is triggered when a VXLAN match rule exists in an IPv4 ACL applied to ingress on L2/L3 ports or SVIs. The VXLAN rule and any ACL rules that follow may ignore the specified IP protocol if TCAM profile is enabled, potentially allowing or filtering traffic inc...

CVE-2023-24512

The CVE-2023-24512 issue affects Arista EOS running with the Streaming Telemetry Agent (TerminAttr) enabled and gNMI access configured. An authorized attacker with gNMI permissions could craft a request to update arbitrary switch configurations, under conditions where TerminAttr is present and gR...

CVE-2021-28500

CVE-2021-28500 affects Arista EOS; root cause is incorrect use of EOS AAA APIs by OpenConfig gNMI/gNOI and TerminAttr, allowing unrestricted device access for local nopassword users. Affected EOS releases span multiple trains; exploitation could occur when OpenConfig gNMI/gNOI is enabled (and/or ...

CVE-2021-28508

CVE-2021-28508 affects Arista EOS with TerminAttr and OpenConfig transport enabled. Under certain conditions TerminAttr or Octa may leak IPsec data in clear text to CloudVision/gNMI authorized users, allowing potential decryption/modification of IPsec traffic. Affected EOS versions when Octa is i...

CVE-2021-28509

CVE-2021-28509 : Arista EOS TerminAttr and OpenConfig transport can leak MACsec data in clear text to authorized users, enabling potential decryption/modification of MACsec traffic. Affected: EOS devices with Octa and TerminAttr enabled; specific affected versions include EOS 4.23.x–4.27.x trains...

CVE-2021-28506

CVE-2021-28506 affects Arista EOS via gNOI APIs (OpenConfig gNMI/gNOI and TerminAttr) where authentication/authorization can be skipped, potentially allowing a device factory reset. The Arista advisory lists affected software trains and versions, with remediation by upgrading to remediated releas...

CVE-2021-28496

CVE-2021-28496 affects Arista EOS and CloudEOS: when using shared secret profiles, the password used for BiDirection Forwarding Detection (BFD) can be leaked through eAPI/JSON outputs to other authenticated users. Affected EOS trains include all 4.22.x, 4.23.x up to 4.23.9, 4.24.x up to 4.24.7, 4...

CVE-2021-28510

CVE-2021-28510 affects Arista EOS: a PTP management/signaling TLV with an invalid Type-Length-Value can cause the PTP agent to restart, leading to service unavailability. Affected EOS releases include 4.27.x (4.27.1 and earlier), 4.26.x (4.26.4 and earlier), 4.25.x (4.25.6 and earlier), and 4.24....

CVE-2021-28507

The CVE-2021-28507 issue in Arista EOS concerns bypass of the service ACL for OpenConfig gNMI/gNOI (and OpenConfig RESTCONF) under certain conditions, causing denied requests to be forwarded to the agent. Affected product: Arista EOS with OpenConfig transport protocols. Root cause: service ACL by...

CVE-2019-18948

Arista EOS contains a vulnerability in the VxLAN implementation where specific malformed ARP packets can crash the VxlanSwFwd agent. Affected EOS versions include 4.21.8M and below (4.21.x), 4.22.3M and below (4.22.x), 4.23.1F and below (4.23.x), and all releases in 4.15–4.20. The issue is trigge...

CVE-2018-5254

CVE-2018-5254 affects Arista EOS before 4.20.2F, where a malicious BGP peer can cause a DoS by sending an UPDATE with a malformed path attribute, triggering a Rib agent restart. The connected advisory and Nessus note that a fix is available in EOS 4.20.2F and later, or via the provided hotfix/pat...

CVE-2018-5255

The CVE affects Arista EOS Mlag agent: in EOS 4.19 before 4.19.4M and 4.20 before 4.20.2F, remote attackers can trigger a DoS by sending crafted UDP packets, restarting the Mlag agent. A fix is available: EOS 4.19.4M or 4.20.2F or later, via patches (CVE-2018-5255 hotfixes CVE-2018-5255-4-19-hotf...

CVE-2020-17355

CVE-2020-17355 affects Arista EOS: vulnerability in DHCP relay handling where a malformed DHCP packet can install an incorrect route, triggering DoS via agent restarts (SandL3Unicast, Ira, Arp, Snmp). Affected EOS releases are 4.24.x before 4.24.2F, 4.23.x before 4.23.5M, 4.22.x before 4.22.7M, a...

CVE-2018-14008

Arista EOS vulnerability CVE-2018-14008: EOS up to 4.21.0F crashes due to mishandled 802.1x authentication, enabling DoS on the Dot1x agent when adjacent-network packets are crafted. Affected releases span 4.16–4.21 (specific hotfix and versioning listed in Security Advisory 0038), with mitigatio...

CVE-2020-15897

CVE-2020-15897 affects Arista EOS where malformed IS-IS link-state PDUs can cause traffic loss or incorrect forwarding. Affected EOS versions are 4.21.12M and all 4.22.x prior to 4.22.7M, all 4.23.x prior to 4.23.5M, and all 4.24.x prior to 4.24.2F. The issue arises in the IS-IS router when proce...

CVE-2015-8236

Arista EOS remote privilege escalation vulnerability CVE-2015-8236 allows remote code execution as root via management-plane access in EOS releases prior to 4.11.12, 4.12 before 4.12.11, 4.13 before 4.13.14M, 4.14 before 4.14.5FX.5, and 4.15 before 4.15.0FX1.1 (Bug 138716). Affected platforms inc...