Is CVE-2012-5836 in the CISA KEV catalog?

No. CVE-2012-5836 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2012-5836?

CVE-2012-5836 has a CVSS v2 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2012-5836?

CVE-2012-5836 has an EPSS score of 4.45% (90th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2012-5836?

Upgrade DeveloperEdition to 17.0 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2012-5836

HIGHEPSS 90th pctl

7.5

CVSS v2

NVD

Description

Mozilla Firefox before 17.0, Thunderbird before 17.0, and SeaMonkey before 2.14 allow remote attackers to execute arbitrary code or cause a denial of service (application crash) via vectors involving the setting of Cascading Style Sheets (CSS) properties in conjunction with SVG text.

CWE-94Code Injection

How to fix

Remediation Available

DeveloperEditionWindows application

Affected:17.0Fixed in:17.0Mozilla

Mozilla Firefox (en-US)Windows application

Affected:17.0Fixed in:17.0Mozilla

Mozilla Thunderbird (en-US)Windows application

Affected:17.0Fixed in:17.0Mozilla

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

4.45%probability of exploitation in 30 days

90thpercentile

High risk: more likely to be exploited than 90% of all known CVEs.

References

Vendor Advisory2

Third-Party Advisory18

Other references1

osvdb.org

Related Vulnerabilities

Other CWE-94 (Code Injection) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2017-9841	Critical	9.8	100%	KEV	Fix
CVE-2015-1635	Critical	9.8	100%	KEV	-
CVE-2022-22954	Critical	9.8	100%	KEV + Ransom	-
CVE-2021-22204	Medium	6.8	100%	KEV	Fix
CVE-2025-3248	Critical	9.8	100%	KEV	Fix
CVE-2012-0158	High	8.8	100%	KEV	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-29.