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CVE-2017-2620
Quick emulator (QEMU) before 2.8 built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds access issue. The…
- 5.5MediumCVSS base score
- 3.6%Exploitation in 30 daysEPSS · top 11% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
Quick emulator (QEMU) before 2.8 built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds access issue. The issue could occur while copying VGA data in cirrus_bitblt_cputovideo. A privileged user inside guest could use this flaw to crash the QEMU process OR potentially execute arbitrary code on host with privileges of the QEMU process.
Timeline
ID reserved
By redhat
- 20 months later
· 20 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 |
|---|---|---|---|
| redhatCNA (assigner) | 3.0 | Medium5.5 | CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L |
| NVDNVD · Modified | 3.0 | Critical9.9 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 3.6% · top 11% 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: Medium 5.5.
Affected products
References
23
- RHSA-2017:0329 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2017:0334 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 1037870 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- RHSA-2017:0328 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- [debian-lts-announce] 20180906 [SECURITY] [DLA 1497-1] qemu security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- RHSA-2017:0333 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2017:0351 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2017:0454 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://xenbits.xen.org/xsa/advisory-209.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2017:0331 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2620 (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20170221 CVE-2017-2620 Qemu: display: cirrus: out-of-bounds access issue while in cirrus_bitblt_cputovideo (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- RHSA-2017:0350 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- [debian-lts-announce] 20180206 [SECURITY] [DLA 1270-1] xen security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- RHSA-2017:0396 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- GLSA-201704-01 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- [qemu-devel] 20170221 [PATCH] cirrus: add blit_is_unsafe call to cirrus_bitblt_cputovideo (CVE-2017-2620) (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- RHSA-2017:0352 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2017:0330 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2017:0332 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 96378 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- https://support.citrix.com/article/CTX220771 (opens in a new tab)x_refsource_CONFIRMx_transferred
- GLSA-201703-07 (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-2017-11781 (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-2017-2620)Record last updated .