CVE-2021-26676
MEDIUMCVSS 6.5/10EPSS 1.21%
Last modified
CVE-2021-26676 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. gdhcp in ConnMan before 1.39 could be used by network-adjacent attackers to leak sensitive stack information, allowing further exploitation of bugs in gdhcp.. EPSS estimates a 1.21% chance of exploitation in the next 30 days.
Description
gdhcp in ConnMan before 1.39 could be used by network-adjacent attackers to leak sensitive stack information, allowing further exploitation of bugs in gdhcp.
Metrics
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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/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/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-2021-26676?
gdhcp in ConnMan before 1.39 could be used by network-adjacent attackers to leak sensitive stack information, allowing further exploitation of bugs in gdhcp.
How severe is CVE-2021-26676?
CVE-2021-26676 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.21% probability of exploitation in the next 30 days.
How do I fix CVE-2021-26676?
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-2021-26676?
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Scan your code nowSource: NVD / NIST