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CVE-2022-29503

31
FAUCET Score

CVE-2022-29503 is a critical memory corruption vulnerability affecting the libpthread linuxthreads functionality in uClibC versions 0.9.33.2 and uClibC-ng 1.0.40, including products like Anker. This flaw, rated 9.8 CVSS (Critical), allows an unauthenticated attacker to remotely trigger memory corruption by creating threads, leading to high impact on confidentiality, integrity, and availability. While no public exploit code or active exploitation has been observed, and community discussion is minimal, its high FAUCET Risk Score of 79/100 indicates significant potential risk.

Impacted Technologies

VendorProductVersion(s)CPE
0.9.33.2CPE matchmatch criteria
cpe:2.3:a:uclibc:uclibc:0.9.33.2:*:*:*:*:*:*:*
1.0.40CPE matchmatch criteria
cpe:2.3:a:uclibc-ng_project:uclibc-ng:1.0.40:*:*:*:*:*:*:*
2.1.8.8hCPE matchmatch criteria
cpe:2.3:o:anker:eufy_homebase_2_firmware:2.1.8.8h:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.1HIGH

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.18%
Probability of exploitation in next 30 days
EPSS Percentile
64.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0118 is in the 50th percentile among its peer group of 36,833 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (8)

microsoftpatch availablevia msrc
Product: 18422-16820Fixed in: 1.0.43-2
microsoftpatch availablevia msrc
Product: 18423-16823Fixed in: 1.0.43-1
microsoftpatch availablevia msrc
Product: cm1 uclibc-ng 1.0.43-2 on CBL Mariner 1.0Fixed in: 1.0.43-2
microsoftpatch availablevia msrc
Product: cbl2 uclibc-ng 1.0.43-1 on CBL Mariner 2.0Fixed in: 1.0.43-1
microsoftpatch availablevia msrc
Product: CBL Mariner 1.0 x64Fixed in: 1.0.43-2
microsoftpatch availablevia msrc
Product: CBL Mariner 1.0 ARMFixed in: 1.0.43-2
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 x64Fixed in: 1.0.43-1
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 ARMFixed in: 1.0.43-1

Vendor Advisories (2)

microsoft2023-Jul/CVE-2022-29503

CVE-2022-29503

Jul 11, 2023
microsoft2022-Sep/CVE-2022-29503Critical

A memory corruption vulnerability exists in the libpthread linuxthreads functionality of uClibC 0.9.33.2 and uClibC-ng 1.0.40. Thread allocation can lead to memory corruption. An attacker can create threads to trigger this vulnerability.

Sep 13, 2022

References

talosintelligence.com / vulnerability_reports/TALOS-2022-1517
ExploitThird Party Advisory