How severe is CVE-2015-4239?

CVE-2015-4239 has a CVSS 2.0 base score of 6.1, rated medium severity.

Is CVE-2015-4239 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-4239?

CVE-2015-4239 primarily affects Cisco Adaptive Security Appliance Software. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-4239?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2015-4239 published?

CVE-2015-4239 was published on 2015-07-03 and last updated on 2026-06-17.

CVE-2015-4239

CVE-2015-4239 is a medium-severity vulnerability in Cisco Adaptive Security Appliance Software with a CVSS 2.0 base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-399.

Key facts

Severity: Medium (CVSS 2.0 base score 6.1)
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-399
Affected product: Cisco Adaptive Security Appliance Software
Published: 2015-07-03
Last modified: 2026-06-17

Description

Cisco Adaptive Security Appliance (ASA) Software 9.3(2.243) and 100.13(0.21) allows remote attackers to cause a denial of service (device reload) by sending crafted OSPFv2 packets on the local network, aka Bug ID CSCus84220.

Frequently asked questions

What is CVE-2015-4239?: Cisco Adaptive Security Appliance (ASA) Software 9.3(2.243) and 100.13(0.21) allows remote attackers to cause a denial of service (device reload) by sending crafted OSPFv2 packets on the local network, aka Bug ID CSCus84220.
How severe is CVE-2015-4239?: CVE-2015-4239 has a CVSS 2.0 base score of 6.1, rated medium severity.
Is CVE-2015-4239 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-4239?: CVE-2015-4239 primarily affects Cisco Adaptive Security Appliance Software. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-4239?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-4239 published?: CVE-2015-4239 was published on 2015-07-03 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:cisco:adaptive_security_appliance_software:100.13\(0.21\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:adaptive_security_appliance_software:9.3\(2.243\):*:*:*:*:*:*:*

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