Back
CVE-2019-12420
In Apache SpamAssassin before 3.4.3, a message can be crafted in a way to use excessive resources. Upgrading to SA 3.4.3 as soon as…
- 7.5HighCVSS base score
- 7.2%Exploitation in 30 daysEPSS · top 5.6% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In Apache SpamAssassin before 3.4.3, a message can be crafted in a way to use excessive resources. Upgrading to SA 3.4.3 as soon as possible is the recommended fix but details will not be shared publicly.
Timeline
ID reserved
By apache
- 7 months later
· 7 months later
Published
- 5 years later
· 5 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 | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 7.2% · top 5.6% of all CVEs (11 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
- affected Apache SpamAssassin prior to 3.4.3
References
References14
- [spamassassin-announce] 20191212 [SECURITY] Apache SpamAssassin v3.4.3 released with fix for CVE-2019-12420 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [spamassassin-dev] 20191212 [SECURITY] Apache SpamAssassin v3.4.3 released with fix for CVE-2019-12420 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [spamassassin-users] 20191212 [SECURITY] Apache SpamAssassin v3.4.3 released with fix for CVE-2019-12420 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [oss-security] 20191212 Apache SpamAssassin v3.4.3 released with fix for CVE-2019-12420 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [announce] 20191212 [SECURITY] Apache SpamAssassin v3.4.3 released with fix for CVE-2019-12420 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://svn.apache.org/repos/asf/spamassassin/branches/3.4/build/announcements/3.4.3.txt (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://bz.apache.org/SpamAssassin/show_bug.cgi?id=7747 (opens in a new tab)x_refsource_MISCx_transferred
- DSA-4584 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- 20191216 [SECURITY] [DSA 4584-1] spamassassin security update (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- [debian-lts-announce] 20191216 [SECURITY] [DLA 2037-1] spamassassin security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- USN-4237-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-4237-2 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- [spamassassin-users] 20200130 Re: ANNOUNCE: Apache SpamAssassin 3.4.4 available (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [spamassassin-users] 20200131 Re: ANNOUNCE: Apache SpamAssassin 3.4.4 available (opens in a new tab)mailing-listx_refsource_MLISTx_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-2019-4033 (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)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2019-12420)Record last updated .