CVE-2012-0646

Q: How do I fix CVE-2012-0646?

Upgrade iphone os to 5.1 or later.

Q: Is CVE-2012-0646 being actively exploited?

Not that we know of. CVE-2012-0646 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 4.8% is the estimated probability that it will be exploited in the next 30 days. That is higher than 91% of all scored CVEs.

Q: How severe is CVE-2012-0646?

CVE-2012-0646 has a CVSS v2 base score of 9.3, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

Q: What does CVE-2012-0646 affect?

Published advisories record a fix for iphone os (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

HIGHEPSS 91th pctl

9.3

CVSS v2

NVD

Description

Format string vulnerability in VPN in Apple iOS before 5.1 allows remote attackers to execute arbitrary code via a crafted racoon configuration file.

CWE-134

How to fix

Remediation Available

iphone osNVD

Affected:< 5.1Fixed in:5.1CVE-2012-0646derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

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

4.84%probability of exploitation in 30 days

91stpercentile

High risk: more likely to be exploited than 91% of all known CVEs.

References

Vendor Advisory1

lists.apple.com

Third-Party Advisory2

Related Vulnerabilities

Other CWE-134 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-13160	Critical	9.8	81%	-	Fix
CVE-2023-22374	High	8.5	73%	-	-
CVE-2012-1851	High	10.0	66%	-	-
CVE-2024-23113	Critical	9.8	62%	KEV	-
CVE-2012-3569	High	9.3	48%	-	-
CVE-2019-1579	High	8.1	46%	KEV + Ransom	Fix

Common questions

How do I fix CVE-2012-0646?

Upgrade iphone os to 5.1 or later.

Is CVE-2012-0646 being actively exploited?

Not that we know of. CVE-2012-0646 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 4.8% is the estimated probability that it will be exploited in the next 30 days. That is higher than 91% of all scored CVEs.

How severe is CVE-2012-0646?

CVE-2012-0646 has a CVSS v2 base score of 9.3, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2012-0646 affect?

Published advisories record a fix for iphone os (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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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.