CVE-2015-1243

highpriority · track · 31EPSS 0.020 · 80 %ileEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.98% (80th) EPSS

CVSS 7.5 · high

Is it mine?

11 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

Use-after-free vulnerability in the MutationObserver::disconnect function in core/dom/MutationObserver.cpp in the DOM implementation in Blink, as used in Google Chrome before 42.0.2311.135, allows remote attackers to cause a denial of service or possibly have unspecified other impact by triggering an attempt to unregister a MutationObserver object that is not currently registered.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.4–7.5

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 6.4

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Psecondary · FSTEC (BDU) RU

v2.06.4mediumAV:N/AC:L/Au:N/C:P/I:P/A:P/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-416US

affected products (11)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
Google Inc Google Chrome37.0 → 42.0.2311.135fstec_bduRU
canonical ubuntu linux= 14.04nvdUScpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*
canonical ubuntu linux= 14.10nvdUScpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*
canonical ubuntu linux= 15.04nvdUScpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*
debian debian linux= 8.0nvdUScpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
google chrome≤ 42.0.2311.87nvdUScpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
redhat enterprise linux desktop supplementary= 6.0nvdUScpe:2.3:o:redhat:enterprise_linux_desktop_supplementary:*:*:*:*:*:*:*:*
redhat enterprise linux server supplementary= 6.0nvdUScpe:2.3:o:redhat:enterprise_linux_server_supplementary:*:*:*:*:*:*:*:*
redhat enterprise linux server supplementary eus= 6.6.znvdUScpe:2.3:o:redhat:enterprise_linux_server_supplementary_eus:*:*:*:*:*:*:*:*
redhat enterprise linux workstation supplementary= 6.0nvdUScpe:2.3:o:redhat:enterprise_linux_workstation_supplementary:*:*:*:*:*:*:*:*

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

published 2015-05-01modified 2026-06-17

references (25)

External citations — patches, advisories, analysis.

scry

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