What is CVE-2022-49058?

CVE-2022-49058 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, affecting Linux kernel versions from 2.6.37 onward and patched in 4.9.311, 4.14.276, 4.19.239 and others. CVE-2022-49058 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-49058?

CVE-2022-49058 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2022-49058?

Yes, CVE-2022-49058 has been patched. Fixed versions include 4.9.311, 4.14.276, 4.19.239 and others. If you are running Linux kernel 2.6.37 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-49058 actively exploited?

CVE-2022-49058 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2022-49058

High

In the Linux kernel, the following vulnerability has been resolved: cifs: potential buffer overflow in handling symlinks Smatch printed a warning: arch/x86/crypto/poly1305_glue.c:198 poly1305_update_arch() error: __memcpy() 'dctx->buf' too small (16 vs u32max) It's caused because Smatch marks 'link_len' as untrusted since it comes from sscanf(). Add a check to ensure that 'link_len' is not larger than the size of the 'link_str' buffer.

Package Linux Kernel

Published 2025-02-26

Last modified 2025-10-01

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Weakness type

CWE-120

CVE-2022-49058 is classified as CWE-120

See CWE-120 on MITRE CWE for full details on this weakness type.

Affected versions

Linux kernel versions 2.6.37 and later are affected. Fixed in 4.9.311, 4.14.276, 4.19.239, 5.4.190, 5.10.112, 5.15.35, 5.17.4, 5.18 and their respective stable series.

Affected from

≥ 2.6.37

Fixed in

✓ 4.9.311 4.9.x ✓ 4.14.276 4.14.x ✓ 4.19.239 4.19.x ✓ 5.4.190 5.4.x ✓ 5.10.112 5.10.x ✓ 5.15.35 5.15.x ✓ 5.17.4 5.17.x ✓ 5.18

References

The following references provide additional information about CVE-2022-49058 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://git.kernel.org/stable/c/1316c28569a80ab3596eeab05bf5e01991e7e739
Patch
Kernel patch commit
https://git.kernel.org/stable/c/22d658c6c5affed10c8907e67160cef0b6c92186
Patch
Kernel patch commit
https://git.kernel.org/stable/c/3e582749e742e662a8e9bb37cffac62dccaaa1e2
Patch

8 patch commits total View all on NVD

Details

CVE ID CVE-2022-49058

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2025-02-26

Modified 2025-10-01

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2022-49058?

CVE-2022-49058 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . It affects Linux kernel versions from 2.6.37 onward and has been patched in 4.9.311, 4.14.276, 4.19.239 and others. CVE-2022-49058 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-49058?

CVE-2022-49058 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2022-49058?

Yes — CVE-2022-49058 has been patched. Fixed versions include 4.9.311, 4.14.276, 4.19.239 and others. If you are running Linux kernel 2.6.37 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-49058 actively exploited?

No — CVE-2022-49058 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.