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CVE-2016-4021
The read_binary function in buffer.c in pgpdump before 0.30 allows context-dependent attackers to cause a denial of service (infinite loop…
- 7.5HighCVSS base score
- 1.8%Exploitation in 30 daysEPSS · top 21% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
The read_binary function in buffer.c in pgpdump before 0.30 allows context-dependent attackers to cause a denial of service (infinite loop and CPU consumption) via crafted input, as demonstrated by the \xa3\x03 string.
Timeline
ID reserved
By mitre
- 42 days later
· 42 days later
Published
- 8 years later
· 8 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | High7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 1.8% · top 21% of all CVEs (9 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
n/a
- affected n/a
References
6
- 20160418 CVE-2016-4021: pgpdump 0.29 - Endless loop parsing specially crafted input (SYSS-2016-030) (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2016-030.txt (opens in a new tab)x_refsource_MISCx_transferred
- FEDORA-2016-5733ad20f5 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- FEDORA-2016-8f4b54b005 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- FEDORA-2016-6fd7a31d36 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- https://github.com/kazu-yamamoto/pgpdump/pull/16 (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2016-5027 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://cveledger.app/cve/CVE-2016-4021)Record last updated .