CVE-2022-27666
A heap buffer overflow flaw was found in IPsec ESP transformation code in net/ipv4/esp4.c and net/ipv6/esp6.c.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (5.52%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 5.52% probability · 93th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- linux/linux kernel · fedoraproject/fedora · redhat/virtualization · redhat/enterprise linux · netapp/h300s firmware · netapp/h500s firmware · netapp/h700s firmware · netapp/h300e firmware · netapp/h500e firmware · netapp/h700e firmware · netapp/h410s firmware · netapp/h410c firmware · debian/debian linux
- Source
- cve@mitre.org
EPSS 5.5% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2061633Issue Tracking, Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/ebe48d368e97d007bfeb76fcb065d6cfc4c96645Patch, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20220429-0001/Third Party Advisory
- https://www.debian.org/security/2022/dsa-5127Third Party Advisory
- https://www.debian.org/security/2022/dsa-5173Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2061633Issue Tracking, Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/ebe48d368e97d007bfeb76fcb065d6cfc4c96645Patch, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20220429-0001/Third Party Advisory
- https://www.debian.org/security/2022/dsa-5127Third Party Advisory
- https://www.debian.org/security/2022/dsa-5173Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.