USN-8376-1 frr vulnerabilities

It was discovered that FRR incorrectly handled certain OSPF Traffic Engineering and Segment Routing TLVs. An attacker could possibly use this issue to cause FRR to crash, resulting in a denial of service. CVE-2026-28532 It was discovered that FRR incorrectly handled certain BGP FlowSpec component...

FRRouting < 10.5.3 Integer Overflow in OSPF TLV Parser Functions

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Cisco Adaptive Security Appliance (ASA) Software OSPF DoS Vulnerabilities (cisco-sa-asaftd-ospf-ZH8PhbSW)

According to its self-reported version, Cisco ASA Software is affected by multiple vulnerabilities. Please see the included Cisco BIDs and Cisco Security Advisory for more information. TRUSTED...

CVE-2026-28532

FRRouting before 10.5.3 is affected by an integer overflow in seven OSPF Traffic Engineering and Segment Routing TLV parser functions. A uint16_t accumulator truncates uint32_t values returned by TLV_SIZE(), causing the loop termination condition to fail while pointer advancement continues. An at...

CVE-2026-20025

A vulnerability in the OSPF protocol of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could allow an authenticated, adjacent attacker to cause an affected device to reload unexpectedly, resulting in a DoS condition. To exploit this vulnerability, the attacker must have the OSPF...

CVE-2026-20022

A vulnerability in the OSPF protocol of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could allow an unauthenticated, adjacent attacker to cause an affected device to reload unexpectedly, resulting in a DoS condition when OSPF canonicalization debug is enabled by using the...

EUVD-2026-9477

A vulnerability in the OSPF protocol of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could allow an unauthenticated, adjacent attacker to cause an affected device to reload unexpectedly, resulting in a DoS condition. If OSPF authentication is enabled, the attacker must know th...

EUVD-2026-9480

A vulnerability in the OSPF protocol of Cisco Secure Firewall Adaptive Security Appliance ASA Software and Cisco Secure Firewall Threat Defense FTD Software could allow an unauthenticated, adjacent attacker to corrupt memory on an affected device, resulting in a denial of service DoS condition...

EUVD-2026-9479

A vulnerability in the OSPF protocol of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could allow an unauthenticated, adjacent attacker to cause an affected device to reload unexpectedly, resulting in a DoS condition when OSPF canonicalization debug is enabled by using the...

CVE-2026-20025

CVE-2026-20025 affects Cisco Secure Firewall ASA/FTD OSPF processing. An authenticated, adjacent attacker with the OSPF secret key can send crafted OSPF LSU packets to trigger insufficient input validation, potentially corrupting the heap and causing the device to reload for a DoS. The vulnerabil...

CVE-2026-20024

CVE-2026-20024 affects Cisco Secure Firewall ASA Software and Cisco Secure FTD Software. The root cause is heap corruption in the OSPF service when parsing packets, exploitable by an adjacent, authenticated attacker who has the OSPF secret key. Successful exploitation can cause the device to relo...

CVE-2026-20023

A vulnerability in the OSPF protocol of Cisco Secure Firewall Adaptive Security Appliance ASA Software and Cisco Secure Firewall Threat Defense FTD Software could allow an unauthenticated, adjacent attacker to corrupt memory on an affected device, resulting in a denial of service DoS condition...

CVE-2026-20022

A vulnerability in the OSPF protocol of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could allow an unauthenticated, adjacent attacker to cause an affected device to reload unexpectedly, resulting in a DoS condition when OSPF canonicalization debug is enabled by using the...

CVE-2026-20022

CVE-2026-20022 affects Cisco Secure Firewall ASA/FTD OSPF processing. The root cause is insufficient input validation when handling OSPF LSU packets, allowing an unauthenticated, adjacent attacker to send crafted OSPF packets that could write outside packet data, trigger a device reload, and caus...

CVE-2026-20020

CVE-2026-20020 describes a vulnerability in the OSPF implementation of Cisco Secure Firewall ASA and Secure Firewall FTD software. The issue stems from insufficient input validation when processing OSPF update packets, which could allow an adjacent, unauthenticated attacker to send crafted packet...

PT-2026-23039

A vulnerability in the OSPF protocol of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could allow an unauthenticated, adjacent attacker to cause an affected device to reload unexpectedly, resulting in a DoS condition when OSPF canonicalization debug is enabled by using the...

PT-2026-23042

Name of the Vulnerable Software and Affected Versions Cisco Secure Firewall ASA Software and Cisco Secure FTD Software affected versions not specified Description A flaw exists in the OSPF protocol that may allow an authenticated, adjacent attacker to cause an unexpected reload of the device,...

ROS-20251124-02

Vulnerability of the software tool for implementing network routing on Unix-like systems FRRouting is related to insufficient validation of OSPF LSA packets in the ospfteparsete function in ospfd/ospfte.c. Exploitation of the vulnerability could allow an attacker acting remotely to cause a denial...

FRRouting/frr from v4.0 through v10.4.1 was discovered to contain a NULL pointer dereference via the show_vty_unknown_tlv function at ospf_ext.c. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted OSPF packet.

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FRRouting Denial of Service Vulnerability (CNVD-2026-10885)

FRRouting is FRRouting open source a network routing software suite running on a Unix-like platform . FRRouting has a denial of service vulnerability caused by NULL pointer dereference via the showvtyextlinklanadjsid function on ospfext.c, which can be exploited by an attacker to cause a denial o...