CVE-2015-5239

MEDIUMNVD 6.56.5—

6.5

Integer overflow in the VNC display driver in QEMU before 2.1.0 allows attachers to cause a denial of service (process crash) via a CLIENT_CUT_TEXT message, which triggers an infinite loop.

CVSS v3: 6.5
EG Score: 6.5(medium)
EPSS: 92.4%
KEV: Not listed

Published

January 23, 2020

Last Modified

November 21, 2024

References (20)

secalert@redhathttp://lists.fedoraproject.org/pipermail/package-announce/2015-October/168077.html
secalert@redhathttp://lists.fedoraproject.org/pipermail/package-announce/2015-October/168646.html
secalert@redhathttp://lists.fedoraproject.org/pipermail/package-announce/2015-October/168671.html
secalert@redhathttp://lists.opensuse.org/opensuse-security-announce/2015-10/msg00026.html
secalert@redhathttp://lists.opensuse.org/opensuse-security-announce/2015-11/msg00005.html
secalert@redhathttp://lists.opensuse.org/opensuse-security-announce/2015-11/msg00011.html
secalert@redhathttp://www.openwall.com/lists/oss-security/2015/09/02/7
secalert@redhathttp://www.ubuntu.com/usn/USN-2745-1
secalert@redhathttps://github.com/qemu/qemu/commit/f9a70e79391f6d7c2a912d785239ee8effc1922d
secalert@redhathttps://www.arista.com/en/support/advisories-notices/security-advisories/1188-security-advisory-14
af854a3a-2127-422b-91ae-364da2661108http://lists.fedoraproject.org/pipermail/package-announce/2015-October/168077.html
af854a3a-2127-422b-91ae-364da2661108http://lists.fedoraproject.org/pipermail/package-announce/2015-October/168646.html
af854a3a-2127-422b-91ae-364da2661108http://lists.fedoraproject.org/pipermail/package-announce/2015-October/168671.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00026.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00005.html

Patch Availability(1)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
ubuntu	qemu-utils (2.0.0+dfsg-2ubuntu1.19) @ trusty	2026-05-27	ubuntu

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-835Loop with Unreachable Exit Condition (Infinite Loop)

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

UbuntuUSN-2745-1LOW
QEMU vulnerabilities

Data Freshness Timeline

(refreshed 8× in last 7d / 8× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-27 13:38 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-27 08:45 UTCEG score recompute
2026-05-27 08:45 UTCVendor advisory
2026-05-27 08:45 UTCGHSA enrichment
2026-05-26 13:41 UTCepss_batch
2026-05-26 05:46 UTCOSV refresh
2026-05-24 16:43 UTCepss_batch

Frequently asked(5)

What is CVE-2015-5239?

CVE-2015-5239 is a medium vulnerability published on January 23, 2020. Integer overflow in the VNC display driver in QEMU before 2.1.0 allows attachers to cause a denial of service (process crash) via a CLIENTCUTTEXT message, which triggers an infinite loop.

When was CVE-2015-5239 disclosed?

CVE-2015-5239 was first published in the National Vulnerability Database on January 23, 2020, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2015-5239 actively exploited?

CVE-2015-5239 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 92.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2015-5239?

CVE-2015-5239 has a CVSS v3 base score of 6.5 (NVD).

How do I remediate CVE-2015-5239?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2015-5239, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2015-5239

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CVE-2015-5239

Published

Last Modified

References (20)

Patch Availability(1)

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2015-5239?

Same vendor

Same CWE

CVE-2015-5239

📅 Published

🔄 Last Modified

🔗 References (20)

Patch Availability(1)

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2015-5239?

🔗 Related CVEs(same vendor + same CWE)

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References (20)

Frequently asked(5)

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