01 Record

CVE-2026-72253

netfilter: nf_conntrack_sip: validate skb_dst() before accessing it

HighPUBLISHEDCNA: Linux

CNA base score7.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

View raw JSON

02 Description

netfilter: nf_conntrack_sip: validate skb_dst() before accessing it

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.69% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 52.4% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD analysis status

Received. NVD last modified this record on 2026-10-16.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published: 2026-08-15 05:54Z2 MO AGO
Last updated: 2026-10-16 18:55Z12 DAYS AGO
Reserved: 2026-08-09
Assigning CNA: Linux
Record state: PUBLISHED
Severity: High (CVSS 7.5)
CNA CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses: No CWE assigned
Data version: 5.2
Document digest: 2439fb6263758ebcebc245ae89d4983ca0d063cbc2b1efd24aa97937d2a19cfc

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxcae3a2627520c3795b54533c5328b77af3405dbe to < 7866116a040b3a23fb094e7d8f7ea3d61b3ac70b, cae3a2627520c3795b54533c5328b77af3405dbe to < c5ef7228be04518d95591fc5369a9c554b19756d, cae3a2627520c3795b54533c5328b77af3405dbe to < 0aec339694a56e263d4b22475ff7211d40900830, cae3a2627520c3795b54533c5328b77af3405dbe to < e64a48c50a1ff565a98c6a98d82b5b942868e76e, cae3a2627520c3795b54533c5328b77af3405dbe to < c199ed687c00841daf60e9d131976958583a8c09, cae3a2627520c3795b54533c5328b77af3405dbe to < 09755dc62b026076b1d47f83489eb0547c8135e0, cae3a2627520c3795b54533c5328b77af3405dbe to < b843a96252f672332837ea2ecb7c8db0acf68e20, cae3a2627520c3795b54533c5328b77af3405dbe to < e5e24a365a5e024efef63cc49abb345fbd4852c5, 4.3—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/7866116a040b3a23fb094e7d8f7ea3d61b3ac70b
git.kernel.orghttps://git.kernel.org/stable/c/c5ef7228be04518d95591fc5369a9c554b19756d
git.kernel.orghttps://git.kernel.org/stable/c/0aec339694a56e263d4b22475ff7211d40900830
git.kernel.orghttps://git.kernel.org/stable/c/e64a48c50a1ff565a98c6a98d82b5b942868e76e
git.kernel.orghttps://git.kernel.org/stable/c/c199ed687c00841daf60e9d131976958583a8c09
git.kernel.orghttps://git.kernel.org/stable/c/09755dc62b026076b1d47f83489eb0547c8135e0
git.kernel.orghttps://git.kernel.org/stable/c/b843a96252f672332837ea2ecb7c8db0acf68e20
git.kernel.orghttps://git.kernel.org/stable/c/e5e24a365a5e024efef63cc49abb345fbd4852c5

07 Fixed in

Debian 12

linux
Fixed in 6.1.187-1
linux-6.12
Fixed in 6.12.101-1~deb12u1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 6.12.101-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 7.1.5-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.