What is CVE-2026-53002?

CVE-2026-53002 is a unscored severity Linux kernel vulnerability, affecting Linux kernel versions from 2.6.20 onward and patched in 5.10.258, 5.15.209, 6.1.175 and others. CVE-2026-53002 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-53002?

CVE-2026-53002 has a CVSS score of pending NVD analysis out of 10, rated awaiting scoring severity.

Is there a patch available for CVE-2026-53002?

Yes, CVE-2026-53002 has been patched. Fixed versions include 5.10.258, 5.15.209, 6.1.175 and others. If you are running Linux kernel 2.6.20 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-53002 actively exploited?

CVE-2026-53002 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-53002

In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: remove sprintf usage Replace it with scnprintf, the buffer sizes are expected to be large enough to hold the result, no need for snprintf+overflow check. Increase buffer size in mangle_content_len() while at it. BUG: KASAN: stack-out-of-bounds in vsnprintf+0xea5/0x1270 Write of size 1 at addr [..] vsnprintf+0xea5/0x1270 sprintf+0xb1/0xe0 mangle_content_len+0x1ac/0x280 nf_nat_sdp_session+0x1cc/0x240 process_sdp+0x8f8/0xb80 process_invite_request+0x108/0x2b0 process_sip_msg+0x5da/0xf50 sip_help_tcp+0x45e/0x780 nf_confirm+0x34d/0x990 [..]

Package Linux Kernel

Published 2026-06-24

Last modified 2026-06-24

Patch available

Yes

Affected versions

Linux kernel versions 2.6.20 and later are affected. Fixed in 5.10.258, 5.15.209, 6.1.175, 6.6.141, 6.12.91, 6.18.33, 7.0.10, 7.1 and their respective stable series.

Affected from

≥ 2.6.20

Fixed in

✓ 5.10.258 5.10.x ✓ 5.15.209 5.15.x ✓ 6.1.175 6.1.x ✓ 6.6.141 6.6.x ✓ 6.12.91 6.12.x ✓ 6.18.33 6.18.x ✓ 7.0.10 7.0.x ✓ 7.1

References

8 total

Showing 5 of 8 references View all on NVD

Frequently asked questions

What is CVE-2026-53002?

CVE-2026-53002 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 2.6.20 onward and has been patched in 5.10.258, 5.15.209, 6.1.175 and others. CVE-2026-53002 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
Is there a patch available for CVE-2026-53002?

Yes — CVE-2026-53002 has been patched. Fixed versions include 5.10.258, 5.15.209, 6.1.175 and others. If you are running Linux kernel 2.6.20 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-53002 actively exploited?

No — CVE-2026-53002 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.