CVE-2023-6399

A format string vulnerability in Zyxel ATP series firmware versions from 4.32 through 5.37 Patch 1, USG FLEX series firmware versions from 4.50 through 5.37 Patch 1, USG FLEX 50W series firmware versions from 4.16 through 5.37 Patch 1, USG20W-VPN series firmware versions from 4.16 through 5.37...

CVE-2023-33086

Transient DOS while processing multiple IKEV2 Informational Request to device from IPSEC server with different identifiers...

CVE-2022-41396

Tenda AC1200 Router Model W15Ev2 V15.11.0.101576 was discovered to contain multiple command injection vulnerabilities in the function setIPsecTunnelList via the IPsecLocalNet and IPsecRemoteNet parameters...

CVE-2022-0910

A downgrade from two-factor authentication to one-factor authentication vulnerability in the CGI program of Zyxel USG/ZyWALL series firmware versions 4.32 through 4.71, USG FLEX series firmware versions 4.50 through 5.21, ATP series firmware versions 4.32 through 5.21, and VPN series firmware...

CVE-2021-23039

On version 16.0.x before 16.0.1.2, 15.1.x before 15.1.3, 14.1.x before 14.1.2.8, and all versions of 13.1.x and 12.1.x, when IPSec is configured on a BIG-IP system, undisclosed requests from an authorized remote IPSec peer, which already has a negotiated Security Association, can cause the Traffi...

CVE-2020-1830

Huawei NIP6800 versions V500R001C30, V500R001C60SPC500, and V500R005C00; Secospace USG6600 and USG9500 versions V500R001C30SPC200, V500R001C30SPC600, V500R001C60SPC500, and V500R005C00 have a vulnerability that a memory management error exists when IPSec Module handing a specific message. This...

CVE-2020-5938

On BIG-IP 13.1.0-13.1.3.4, 12.1.0-12.1.5.2, and 11.6.1-11.6.5.2, when negotiating IPSec tunnels with configured, authenticated peers, the peer may negotiate a different key length than the BIG-IP configuration would otherwise allow...

CVE-2020-1828

Huawei NIP6800 versions V500R001C30, V500R001C60SPC500, and V500R005C00; and Secospace USG6600 and USG9500 versions V500R001C30SPC200, V500R001C30SPC600, V500R001C60SPC500, and V500R005C00 have an input validation vulnerability where the IPSec module does not validate a field in a specific messag...

CVE-2020-1829

Huawei NIP6800 versions V500R001C30 and V500R001C60SPC500; and Secospace USG6600 and USG9500 versions V500R001C30SPC200, V500R001C30SPC600, and V500R001C60SPC500 have a vulnerability that the IPSec module handles a message improperly. Attackers can send specific message to cause double free memor...

CVE-2020-1816

Huawei NIP6800 versions V500R001C30, V500R001C60SPC500, and V500R005C00; Secospace USG6600 and USG9500 versions V500R001C30SPC200, V500R001C30SPC600, V500R001C60SPC500, and V500R005C00 have a Denial of Service DoS vulnerability. Due to improper processing of specific IPSEC packets, remote attacke...

CVE-2013-5172

The kernel in Apple Mac OS X before 10.9 does not properly determine the output length for SHA-2 digest function calls, which allows context-dependent attackers to cause a denial of service panic by triggering a digest operation, as demonstrated by an IPSec connection...

CVE-2013-5548

The IKEv2 implementation in Cisco IOS, when AES-GCM or AES-GMAC is used, allows remote attackers to bypass certain IPsec anti-replay features via IPsec tunnel traffic, aka Bug ID CSCuj47795...

CVE-2019-5613

In FreeBSD 12.0-RELEASE before 12.0-RELEASE-p13, a missing check in the ipsec packet processor allows reinjection of an old packet to be accepted by the ipsec endpoint. Depending on the higher-level protocol in use over ipsec, this could allow an action to be repeated...

CVE-2019-6147

Forcepoint NGFW Security Management Center SMC versions lower than 6.5.12 or 6.7.1 have a rare issue that in specific circumstances can corrupt the internal configuration database. When the database is corrupted, the SMC might produce an incorrect IPsec configuration for the Forcepoint Next...

CVE-2019-6143

Forcepoint Next Generation Firewall Forcepoint NGFW 6.4.x before 6.4.7, 6.5.x before 6.5.4, and 6.6.x before 6.6.2 has a serious authentication vulnerability that potentially allows unauthorized users to bypass password authentication and access services protected by the NGFW Engine. The...

CVE-2011-4231

Cisco IOS 15.1 and 15.2 and IOS XE 3.x, when configured as an IPsec hub with X.509 certificates in use, allows remote authenticated users to cause a denial of service segmentation fault and device crash via unspecified vectors, aka Bug ID CSCtq61128...

CVE-2012-2500

Cisco AnyConnect Secure Mobility Client 3.0 before 3.0.08057 does not verify the certificate name in an X.509 certificate during WebLaunch of IPsec, which allows man-in-the-middle attackers to spoof servers via a crafted certificate, aka Bug ID CSCtz29470...

CVE-2012-2499

The IPsec implementation in Cisco AnyConnect Secure Mobility Client 3.0 before 3.0.08057 does not verify the certificate name in an X.509 certificate, which allows man-in-the-middle attackers to spoof servers via a crafted certificate, aka Bug ID CSCtz26985...

CVE-2005-3753

Linux kernel before after 2.6.12 and before 2.6.13.1 might allow attackers to cause a denial of service Oops via certain IPSec packets that cause alignment problems in standard multi-block cipher processors. NOTE: it is not clear whether this issue can be triggered by an attacker...

CVE-2025-37959

CVE-2025-37959 (Linux kernel) : When using bpf_redirect_peer to forward packets to a device in a different network namespace, skb data is not scrubbed, causing possible leakage of namespace-specific information. The issue arises because the packet’s XFRM state and skb extensions persist across ne...