CVE-2021-40226: glyphandcog xpdfreader Out-of-bounds Write
CVSS: 7.5v3.1HighModified
AliasesUBUNTU-CVE-2021-40226
Published 10-11-2022Last modified 01-05-2025
Vulnerability summary
CVE-2021-40226 is a high (CVSS 7.5) Out-of-bounds Write vulnerability in glyphandcog xpdfreader. EPSS estimates a 0.77% chance of exploitation in the next 30 days, higher than 54.6% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v3.1 (CVE.org)EPSS score
0.77%
0%100%
Low · +0.01 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 10-11-2022PublishedVulnerability first disclosed.
- 01-05-2025Last modifiedVulnerability information updated.
Description
xpdfreader 4.03 is vulnerable to Buffer Overflow.
CVSS metrics
3 scores · 3 sources · 1 versionHigh 7.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.77%
Chance of exploitation in the next 30 days
Percentile
55%
Versus all other CVEs
30-day change
+0.01 pp
From 0.75% on 19-09-2026
19-09-202619-10-2026
EPSS score0.77%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu2 products
- ipeAll versions (No fix recorded)
- xpdfAll versions (No fix recorded)
Glyphandcog1 product
- xpdfreader4.03
2 vendors · 3 products