CVE-2021-26675
HIGHCVSS 8.8/10EPSS 1.30%
Last modified
CVE-2021-26675 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. A stack-based buffer overflow in dnsproxy in ConnMan before 1.39 could be used by network adjacent attackers to execute code.. EPSS estimates a 1.30% chance of exploitation in the next 30 days.
Description
A stack-based buffer overflow in dnsproxy in ConnMan before 1.39 could be used by network adjacent attackers to execute code.
Metrics
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Intel | Connman | < 1.39 |
| Debian | Debian Linux | 9.0 |
| Debian | Debian Linux | 10.0 |
| Opensuse | Leap | 15.2 |
References
- https://bugzilla.suse.com/show_bug.cgi?id=1181751Issue Tracking, Third Party Advisory
- https://git.kernel.org/pub/scm/network/connman/connman.git/tree/ChangeLogRelease Notes, Third Party Advisory
- https://kunnamon.io/tbone/Technical Description, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/02/msg00013.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202107-29Third Party Advisory
- https://www.debian.org/security/2021/dsa-4847Third Party Advisory
- https://www.openwall.com/lists/oss-security/2021/02/08/2Mailing List, Third Party Advisory
- https://bugzilla.suse.com/show_bug.cgi?id=1181751Issue Tracking, Third Party Advisory
- https://git.kernel.org/pub/scm/network/connman/connman.git/tree/ChangeLogRelease Notes, Third Party Advisory
- https://kunnamon.io/tbone/Technical Description, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/02/msg00013.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202107-29Third Party Advisory
- https://www.debian.org/security/2021/dsa-4847Third Party Advisory
- https://www.openwall.com/lists/oss-security/2021/02/08/2Mailing List, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-26675?
A stack-based buffer overflow in dnsproxy in ConnMan before 1.39 could be used by network adjacent attackers to execute code.
How severe is CVE-2021-26675?
CVE-2021-26675 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.30% probability of exploitation in the next 30 days.
How do I fix CVE-2021-26675?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2021-26675?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST