CVE-2020-6621
HIGHCVSS 8.8/10EPSS 1.14%
Last modified
CVE-2020-6621 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. stb stb_truetype.h through 1.22 has a heap-based buffer over-read in ttUSHORT.. EPSS estimates a 1.14% chance of exploitation in the next 30 days.
Description
stb stb_truetype.h through 1.22 has a heap-based buffer over-read in ttUSHORT.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Nothings | Stb Truetype.H | <= 1.22 |
References
- https://github.com/nothings/stb/issues/867Exploit, Third Party Advisory
- https://github.com/nothings/stb/issues/867Exploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-6621?
stb stb_truetype.h through 1.22 has a heap-based buffer over-read in ttUSHORT.
How severe is CVE-2020-6621?
CVE-2020-6621 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.14% probability of exploitation in the next 30 days.
How do I fix CVE-2020-6621?
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.
Related CVEs from 2020
- CVE-2020-6615GNU LibreDWG 0.9.3.2564 has an invalid pointer dereference i…6.5
- CVE-2020-6616Some Broadcom chips mishandle Bluetooth random-number genera…6.5
- CVE-2020-6617stb stb_truetype.h through 1.22 has an assertion failure in …8.8
- CVE-2020-6618stb stb_truetype.h through 1.22 has a heap-based buffer over…8.8
- CVE-2020-6619stb stb_truetype.h through 1.22 has an assertion failure in …8.8
- CVE-2020-6620stb stb_truetype.h through 1.22 has a heap-based buffer over…8.8
- CVE-2020-6622stb stb_truetype.h through 1.22 has a heap-based buffer over…8.8
- CVE-2020-6623stb stb_truetype.h through 1.22 has an assertion failure in …8.8
- CVE-2020-6624jhead through 3.04 has a heap-based buffer over-read in proc…7.1
- CVE-2020-6625jhead through 3.04 has a heap-based buffer over-read in Get3…7.1
- CVE-2020-6627The web-management application on Seagate Central NAS STCG20…9.8
- CVE-2020-6628Ming (aka libming) 0.4.8 has a heap-based buffer over-read i…8.8
Are you affected by CVE-2020-6621?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST