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CVE-2015-1779
The VNC websocket frame decoder in QEMU allows remote attackers to cause a denial of service (memory and CPU consumption) via a large (1)…
- 8.6HighCVSS base score
- 6.6%Exploitation in 30 daysEPSS · top 6.1% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
The VNC websocket frame decoder in QEMU allows remote attackers to cause a denial of service (memory and CPU consumption) via a large (1) websocket payload or (2) HTTP headers section.
Timeline
ID reserved
By redhat
- 11 months later
· 11 months later
Published
- 9 years later
· 9 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 | High8.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 6.6% · top 6.1% of all CVEs (10 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.6.
Affected products
n/a
- affected n/a
References
17
- SUSE-SU-2015:0870 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- [Qemu-devel] 20150323 [PATCH 1/2] CVE-2015-1779: incrementally decode websocket frames (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- FEDORA-2015-5541 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- DSA-3259 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- [oss-security] 20150409 Re: CVE-2015-1779 qemu: vnc: insufficient resource limiting in VNC websockets decoder (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- SUSE-SU-2015:0896 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- FEDORA-2015-5482 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- [Qemu-devel] 20150323 [PATCH 0/2] CVE-2015-1779: fix denial of service in VNC websockets (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- RHSA-2015:1931 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- [oss-security] 20150324 CVE-2015-1779 qemu: vnc: insufficient resource limiting in VNC websockets decoder (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 1033975 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2015:1943 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- USN-2608-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- [Qemu-devel] 20150323 [PATCH 2/2] CVE-2015-1779: limit size of HTTP headers from websockets clients (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 73303 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- GLSA-201602-01 (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-2015-1906 (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-2015-1779)Record last updated .