Is CVE-2026-52985 in the CISA KEV catalog?

No. CVE-2026-52985 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-52985?

CVE-2026-52985 has a CVSS v3 base score of 5.5 (Moderate).

What is the EPSS score for CVE-2026-52985?

CVE-2026-52985 has an EPSS score of 0.18% (7th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-52985?

Upgrade linux on debian 11 to 5.10.259-1 or later.

CVE & CISA-KEV Catalog

CVE-2026-52985

MEDIUM

5.5

CVSS v3

NVD

Description

In the Linux kernel, the following vulnerability has been resolved: netdevsim: zero initialize struct iphdr in dummy sk_buff Syzbot reports a KMSAN uninit-value originating from nsim_dev_trap_skb_build, with the allocation also being performed in the same function. Fix this by calling skb_put_zero instead of skb_put to guarantee zero initialization of the whole IP header.

How to fix

Remediation Available

linuxDebian

Fixed in:5.10.259-1CVE-2026-52985

Fixed in:6.1.176-1CVE-2026-52985

Fixed in:6.12.94-1CVE-2026-52985

Fixed in:7.0.10-1CVE-2026-52985

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.18%probability of exploitation in 30 days

7thpercentile

Low risk: more likely to be exploited than 7% of all known CVEs.

References

Other references8

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-24.