CVE-2021-42586: gnu libredwg Out-of-bounds Write
CVSS: 8.8v3.1HighModified
Published 23-05-2022Last modified 04-08-2024
Vulnerability summary
CVE-2021-42586 is a high (CVSS 8.8) Out-of-bounds Write vulnerability in gnu libredwg. EPSS estimates a 1.03% chance of exploitation in the next 30 days, higher than 63.1% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
8.8/10
010
High · v3.1 (NVD)EPSS score
1.03%
0%100%
Low · +0.02 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Timeline
- 23-05-2022PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
A heap buffer overflow was discovered in copy_bytes in decode_r2007.c in dwgread before 0.12.4 via a crafted dwg file.
CVSS metrics
2 scores · 1 source · 2 versionsHigh 8.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HSourcesSingle source
Medium 6.8Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
1.03%
Chance of exploitation in the next 30 days
Percentile
63%
Versus all other CVEs
30-day change
+0.02 pp
From 1.01% on 20-09-2026
20-09-202620-10-2026
EPSS score1.03%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundLibredwg
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Gnu1 product
- libredwg< 0.12.4
1 vendor · 1 product
References
1 links- github.com/LibreDWG/libredwg/issues/350X Refsource MISCExploitIssue TrackingPatchThird Party Advisory