CVE-2026-100070

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-100070
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_nat_sip: rewind offset when NAT shrinks the packet sashiko says: If map_addr() changes the packet length, such as when the public NAT IP string is shorter or longer than the internal IP, coff will still point to the offset relative to the pre-mangled packet. If the packet shrinks, coff could overshoot the correct position, potentially causing the next ct_sip_parse_header_uri() call to silently skip bytes and miss subsequent Contact headers. Could this lead to a failure to NAT those subsequent headers and leak internal network details?

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/0f4d30e2e49f343fc28ba1e259fd22969b940c46 Patch
https://git.kernel.org/stable/c/16aecbe3036f6097c26b51b12e4c1cf207769690 Patch
https://git.kernel.org/stable/c/2703f5ea8d85bc729f433ac09ee902084c947122 Patch
https://git.kernel.org/stable/c/668cc1c30caedc63070b10d17d5514748988a140 Patch
https://git.kernel.org/stable/c/6828aca3d82717c2fda92af81c0dda642bc2b465 Patch
https://git.kernel.org/stable/c/810da5a63549531da78348b0a4545042d84e01e2 Patch
https://git.kernel.org/stable/c/c408d416618ebb8a95e3097a13f3b793ea9272ee Patch
https://git.kernel.org/stable/c/e70d48fcf8382581162608a4a322919bfd22aef3 Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
History

20 Oct 2026, 18:19

Type Values Removed Values Added
First Time Linux linux Kernel
Linux
CWE NVD-CWE-noinfo
References () https://git.kernel.org/stable/c/0f4d30e2e49f343fc28ba1e259fd22969b940c46 - () https://git.kernel.org/stable/c/0f4d30e2e49f343fc28ba1e259fd22969b940c46 - Patch
References () https://git.kernel.org/stable/c/16aecbe3036f6097c26b51b12e4c1cf207769690 - () https://git.kernel.org/stable/c/16aecbe3036f6097c26b51b12e4c1cf207769690 - Patch
References () https://git.kernel.org/stable/c/2703f5ea8d85bc729f433ac09ee902084c947122 - () https://git.kernel.org/stable/c/2703f5ea8d85bc729f433ac09ee902084c947122 - Patch
References () https://git.kernel.org/stable/c/668cc1c30caedc63070b10d17d5514748988a140 - () https://git.kernel.org/stable/c/668cc1c30caedc63070b10d17d5514748988a140 - Patch
References () https://git.kernel.org/stable/c/6828aca3d82717c2fda92af81c0dda642bc2b465 - () https://git.kernel.org/stable/c/6828aca3d82717c2fda92af81c0dda642bc2b465 - Patch
References () https://git.kernel.org/stable/c/810da5a63549531da78348b0a4545042d84e01e2 - () https://git.kernel.org/stable/c/810da5a63549531da78348b0a4545042d84e01e2 - Patch
References () https://git.kernel.org/stable/c/c408d416618ebb8a95e3097a13f3b793ea9272ee - () https://git.kernel.org/stable/c/c408d416618ebb8a95e3097a13f3b793ea9272ee - Patch
References () https://git.kernel.org/stable/c/e70d48fcf8382581162608a4a322919bfd22aef3 - () https://git.kernel.org/stable/c/e70d48fcf8382581162608a4a322919bfd22aef3 - Patch
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5

25 Sep 2026, 14:17

Type Values Removed Values Added
New CVE
Information

Published : 2026-09-25 14:17

Updated : 2026-10-20 18:19

NVD link : CVE-2026-100070

Mitre link : CVE-2026-100070

CVE.ORG link : CVE-2026-100070

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
NVD-CWE-noinfo