CVE-2020-23907: avast retdec Out-of-bounds Write
CVSS: 9.8v3.1CriticalModified
Published 21-04-2021Last modified 04-08-2024
Vulnerability summary
CVE-2020-23907 is a critical (CVSS 9.8) Out-of-bounds Write vulnerability in avast retdec. EPSS estimates a 2.61% chance of exploitation in the next 30 days, higher than 85.1% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
9.8/10
010
Critical · v3.1 (NVD)EPSS score
2.61%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Timeline
- 21-04-2021PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
An issue was discovered in retdec v3.3. In function canSplitFunctionOn() of ir_modifications.cpp, there is a possible out of bounds read due to a heap buffer overflow. The impact is: Deny of Service, Memory Disclosure, and Possible Code Execution.
CVSS metrics
2 scores · 1 source · 2 versionsCritical 9.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesSingle source
High 7.5Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
2.61%
Chance of exploitation in the next 30 days
Percentile
85%
Versus all other CVEs
30-day change
0.00 pp
From 2.61% on 20-09-2026
20-09-202620-10-2026
EPSS score2.61%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundRetdec
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Avast1 product
- retdec3.3
1 vendor · 1 product
References
2 links- github.com/avast/retdec/commit/517298bafaaff0a8e3dd60dd055a67c41b545807X Refsource MISCPatchThird Party Advisory