PT-2025-8543 · Linux+5 · Linux Kernel+5

Josh Poimboeuf · Published 2022-01-01 · Updated 2026-03-14 · CVE-2022-49610

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A vulnerability in the Linux kernel has been resolved, specifically related to KVM: VMX. The issue concerns preventing RSB underflow before vmenter on VMX. There is a potential risk associated with balanced returns between the time the guest's SPEC CTRL value is written and the vmenter, particularly in the event of an NMI with a deep call stack. To address this, the fix prevents any returns between the SPEC CTRL write and the vmenter.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Stack Overflow

Weakness Enumeration

CWE-121

Related Identifiers

AZL-68717

BDU:2026-02204

CESA-2022_7110

CESA-2022_7683

CVE-2022-49610

OPENSUSE-SU-2025_1263-1

RHSA-2022:7110

RHSA-2022:7683

RHSA-2022:8973

RHSA-2022_7110

RHSA-2022_7683

SUSE-SU-2025:1027-1

SUSE-SU-2025:1176-1

SUSE-SU-2025:1183-1

SUSE-SU-2025:1194-1

SUSE-SU-2025:1241-1

SUSE-SU-2025:1263-1

SUSE-SU-2025:1293-1

SUSE-SU-2025_1027-1

SUSE-SU-2025_1241-1

SUSE-SU-2025_1263-1

SUSE-SU-2025_1293-1

Affected Products

Astra Linux

Centos

Debian

Linux Kernel

Red Hat

Suse

References · 1497

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49610.json · Exploit
• https://osv.dev/vulnerability/AZL-68717 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-49610 · Security Note
• https://git.kernel.org/stable/c/afd743f6dde87296c6f3414706964c491bb85862 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:1183-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1293-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1176-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-49610 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-49610 · Security Note
• https://osv.dev/vulnerability/ROOT-OS-DEBIAN-11-CVE-2022-49610 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-49610 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1194-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1241-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:1027-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2022-49610 · Vendor Advisory