CVE-2026-100070: linux

CVSS: UnknownUndergoing analysis
AliasesUBUNTU-CVE-2026-100070DEBIAN-CVE-2026-100070
Published 25-09-2026Last modified 19-10-2026
Open JSON

Vulnerability summary

CVE-2026-100070 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 5.3% of scored vulnerabilities.

Overall risk
0/100
0100
Minimal · default modelHow is this calculated?
CVSS score
Not scored
010
No CVSS score recorded
EPSS score
0.17%
0%100%
Low · Change unavailable
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Related 1
MGASA-2026-0506OPENSUSE-SU-2026:11893-1

Timeline

  1. 25-09-2026
    PublishedVulnerability first disclosed.
  2. 19-10-2026
    Last modifiedVulnerability information updated.

Description

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?

CVSS metrics

Risk metrics not yet published.

EPSS trend

Probability

0.17%

Chance of exploitation in the next 30 days

Percentile

5%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

26-09-202619-10-2026
EPSS score
0.17%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu169 products
  • linuxAll versions (No fix recorded)
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
  • linuxAll versions (No fix recorded) | < 6.1.190-1 | < 6.12.111-1 | < 7.2.6-1
  • linux-6.12< 6.12.111-1~deb12u1
Linux1 product
  • linux≥ c978cd3a937141deaf7995b849824af6dacdeae7, < 6828aca3d82717c2fda92af81c0dda642bc2b465 | ≥ c978cd3a937141deaf7995b849824af6dacdeae7, < 2703f5ea8d85bc729f433ac09ee902084c947122 | ≥ c978cd3a937141deaf7995b849824af6dacdeae7, < 0f4d30e2e49f343fc28ba1e259fd22969b940c46 | ≥ c978cd3a937141deaf7995b849824af6dacdeae7, < 810da5a63549531da78348b0a4545042d84e01e2 | ≥ c978cd3a937141deaf7995b849824af6dacdeae7, < 668cc1c30caedc63070b10d17d5514748988a140 | ≥ c978cd3a937141deaf7995b849824af6dacdeae7, < e70d48fcf8382581162608a4a322919bfd22aef3 | ≥ c978cd3a937141deaf7995b849824af6dacdeae7, < c408d416618ebb8a95e3097a13f3b793ea9272ee | ≥ c978cd3a937141deaf7995b849824af6dacdeae7, < 16aecbe3036f6097c26b51b12e4c1cf207769690 | 2.6.26

3 vendors · 172 products

References

12 links
Show all 12 references