CVE-2022-27666

HIGH

7.8

CVSS Score

Published: March 23, 2022 at 05:07 AM UTC

Updated: September 1, 2026 at 06:21 PM UTC

21 products affected across 5 vendorsLinux KernelDebian LinuxFedora

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Severity

HIGH7.8

Exploit prediction

EPSS 6%

Description

A heap buffer overflow flaw was found in IPsec ESP transformation code in net/ipv4/esp4.c and net/ipv6/esp6.c. This flaw allows a local attacker with a normal user privilege to overwrite kernel heap objects and may cause a local privilege escalation threat.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Debian Linux · Debiandrupal

95%

10.0 11.0 9.0

Fedora · Fedora Projectrpm

95%

34 35

Linux Kernel · Linux

95%

4.11 ≤ v < 4.14.2744.15 ≤ v < 4.19.2374.20 ≤ v < 5.4.1885.11 ≤ v < 5.15.295.16 ≤ v < 5.16.155.5 ≤ v < 5.10.1085.17 rc1 5.17 rc2 5.17 rc3 5.17 rc4 5.17 rc5 5.17 rc6 5.17 rc7

Affected range stops below 4.14.274, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.19.237, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.10.108, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.15.29, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.16.15, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.4.188, so it looks safe — our inference, not a vendor statement

H300E Firmware · NetAppdrupal

95%

All versions

netapp-h300e (same device)

H300S Firmware · NetAppdrupal

95%