CVE-2020-12740
CRITICALCVSS 9.1/10EPSS 1.65%
Last modified
CVE-2020-12740 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. tcprewrite in Tcpreplay through 4.3.2 has a heap-based buffer over-read during a get_c operation. The issue is being triggered in the function get_ipv6_next() at common/get.c.. EPSS estimates a 1.65% chance of exploitation in the next 30 days.
Description
tcprewrite in Tcpreplay through 4.3.2 has a heap-based buffer over-read during a get_c operation. The issue is being triggered in the function get_ipv6_next() at common/get.c.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Broadcom | Tcpreplay | <= 4.3.2 |
| Fedoraproject | Fedora | 31 |
| Fedoraproject | Fedora | 32 |
References
- https://github.com/appneta/tcpreplay/issues/576Exploit, Issue Tracking, Third Party Advisory
- https://github.com/appneta/tcpreplay/issues/576Exploit, Issue Tracking, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-12740?
tcprewrite in Tcpreplay through 4.3.2 has a heap-based buffer over-read during a get_c operation. The issue is being triggered in the function get_ipv6_next() at common/get.c.
How severe is CVE-2020-12740?
CVE-2020-12740 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 1.65% probability of exploitation in the next 30 days.
How do I fix CVE-2020-12740?
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-2020-12740?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST