CVE-2020-18428: tinyexr_project tinyexr Improper Validation of Array Index
CVSS: 7.5v3.1HighModified
AliasesUBUNTU-CVE-2020-18428
Published 26-07-2021Last modified 04-08-2024
Vulnerability summary
CVE-2020-18428 is a high (CVSS 7.5) Improper Validation of Array Index vulnerability in tinyexr_project tinyexr. EPSS estimates a 1.23% chance of exploitation in the next 30 days, higher than 68.5% of scored vulnerabilities. 2 public exploits are recorded.
CVSS score
7.5/10
010
High · v3.1 (NVD)EPSS score
1.23%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits2github
Timeline
- 26-07-2021PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
tinyexr commit 0.9.5 was discovered to contain an array index error in the tinyexr::SaveEXR component, which can lead to a denial of service (DOS).
CVSS metrics
3 scores · 2 sources · 2 versionsHigh 7.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesAll 2 agree
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
1.23%
Chance of exploitation in the next 30 days
Percentile
69%
Versus all other CVEs
30-day change
0.00 pp
From 1.23% on 18-09-2026
18-09-202618-10-2026
EPSS score1.23%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
2 foundTinyexr
Maturity: poc
Security Advisories
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Tinyexr_project1 product
- tinyexr0.9.5
Ubuntu1 product
- tinyexrAll versions (No fix recorded)
2 vendors · 2 products
References
4 links- github.com/syoyo/tinyexr/issues/109X Refsource MISCREPORTExploitIssue TrackingPatchThird Party Advisory
- github.com/ChijinZ/security_advisories/tree/master/tinyexr_65f9859X Refsource MISCREPORTExploitThird Party Advisory