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CVE-2018-1503
IBM WebSphere MQ 7.5, 8.0, and 9.0 could allow a remotely authenticated attacker to to send invalid or malformed headers that could cause…
- 4.3MediumCVSS base score
- 2.0%Exploitation in 30 daysEPSS · top 19% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
IBM WebSphere MQ 7.5, 8.0, and 9.0 could allow a remotely authenticated attacker to to send invalid or malformed headers that could cause messages to no longer be transmitted via the affected channel. IBM X-Force ID: 141339.
Timeline
ID reserved
By ibm
- 7 months later
· 7 months 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 |
|---|---|---|---|
| ibmCNA (assigner) | 3.0 | Medium4.3 | CVSS:3.0/A:L/AC:L/AV:N/C:N/I:N/PR:L/S:U/UI:N/E:U/RC:C/RL:O |
| NVDNVD · Modified | 3.0 | Medium4.3 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L |
- EPSS (exploitation in 30 days)
- 2.0% · top 19% 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: Medium 4.3.
Affected products
- affected 7.5
- affected 8.0
- affected 9.0
References
4
- 104953 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- http://www.ibm.com/support/docview.wss?uid=swg22015617 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 1041387 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- ibm-websphere-cve20181503-dos(141339) (opens in a new tab)vdb-entryx_refsource_XFx_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-2018-12082 (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-2018-1503)Record last updated .