Is CVE-2010-4686 in the CISA KEV catalog?

No. CVE-2010-4686 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2010-4686?

CVE-2010-4686 has a CVSS v2 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2010-4686?

CVE-2010-4686 has an EPSS score of 3.18% (87th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2010-4686?

Upgrade ios to 15.0(1)xa1 or later.

CVE & CISA-KEV Catalog

CVE-2010-4686

HIGHEPSS 87th pctl

7.8

CVSS v2

NVD

Description

CallManager Express (CME) on Cisco IOS before 15.0(1)XA1 does not properly handle SIP TRUNK traffic that contains rate bursts and a "peculiar" request size, which allows remote attackers to cause a denial of service (memory consumption) by sending this traffic over a long duration, aka Bug ID CSCtb47950.

CWE-400Resource Exhaustion

How to fix

Remediation Available

iosNVD

Affected:< 15.0(1)xa1Fixed in:15.0(1)xa1CVE-2010-4686derived from NVD

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

3.18%probability of exploitation in 30 days

87thpercentile

Elevated risk: more likely to be exploited than 87% of all known CVEs.

References

Vendor Advisory1

cisco.com

Third-Party Advisory2

Related Vulnerabilities

Other CWE-400 (Resource Exhaustion) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-44487	High	7.5	100%	KEV	Fix
CVE-2021-44228	Critical	10.0	100%	KEV + Ransom	Fix
CVE-2011-3192	High	7.8	99%	-	Fix
CVE-2019-11478	Medium	5.3	95%	-	Fix
CVE-2024-25617	Medium	5.3	89%	-	Fix
CVE-2018-1000115	High	7.5	89%	-	Fix

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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.