CVE-2021-32611
HIGHCVSS 7.5/10EPSS 1.07%
Last modified
CVE-2021-32611 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A NULL pointer dereference vulnerability exists in eXcall_api.c in Antisip eXosip2 through 5.2.0 when handling certain 3xx redirect responses.. EPSS estimates a 1.07% chance of exploitation in the next 30 days.
Description
A NULL pointer dereference vulnerability exists in eXcall_api.c in Antisip eXosip2 through 5.2.0 when handling certain 3xx redirect responses.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Antisip | Exosip2 | <= 5.2.0 |
References
- http://git.savannah.nongnu.org/cgit/exosip.git/commit/?id=f2ed389fe84613512cc560127883e51e6cf8c054Patch, Third Party Advisory
- http://git.savannah.nongnu.org/cgit/exosip.git/commit/?id=f2ed389fe84613512cc560127883e51e6cf8c054Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-32611?
A NULL pointer dereference vulnerability exists in eXcall_api.c in Antisip eXosip2 through 5.2.0 when handling certain 3xx redirect responses.
How severe is CVE-2021-32611?
CVE-2021-32611 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.07% probability of exploitation in the next 30 days.
How do I fix CVE-2021-32611?
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.
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Are you affected by CVE-2021-32611?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST