- 5.5MediumCVSS base score
- 1.3%Exploitation in 30 daysEPSS · top 29% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
A vulnerability in ClamAV versions prior to 0.100.2 could allow an attacker to cause a denial of service (DoS) condition. The vulnerability is due to an error related to the MEW unpacker within the "unmew11()" function (libclamav/mew.c), which can be exploited to trigger an invalid read memory access via a specially crafted EXE file.
Timeline
ID reserved
By cisco
- 59 days later
· 59 days later
Published
- 6 years later
· 6 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 | Medium5.5 | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 1.3% · top 29% of all CVEs (10 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
References
7
- [debian-lts-announce] 20181024 [SECURITY] [DLA 1553-1] clamav security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://bugzilla.clamav.net/show_bug.cgi?id=12170 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 83000 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- USN-3789-2 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-3789-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- https://www.flexera.com/company/secunia-research/advisories/SR-2018-23.html (opens in a new tab)x_refsource_MISCx_transferred
- GLSA-201904-12 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_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-2018-7256 (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-2018-15378)Record last updated .