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CVE-2015-0631

23
FAUCET Score

CVE-2015-0631 describes a race condition vulnerability in the SSL implementation of Cisco Intrusion Prevention System (IPS) devices. This flaw allows remote attackers to trigger a denial of service by initiating numerous HTTPS connections to the management interface during the key-regeneration phase of an upgrade. With a CVSS score of 7.1, this vulnerability is considered high severity, requiring medium attack complexity but leading to a complete loss of availability. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
7.2\(1\)e4CPE matchmatch criteria
cpe:2.3:a:cisco:ips_sensor_software:7.2\(1\)e4:*:*:*:*:*:*:*
7.2\(2\)e4CPE matchmatch criteria
cpe:2.3:a:cisco:ips_sensor_software:7.2\(2\)e4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.1HIGH

AV:N/AC:M/Au:N/C:N/I:N/A:C

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.16%
Probability of exploitation in next 30 days
EPSS Percentile
63.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0116 is in the 26th percentile among its peer group of 8,914 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

tools.cisco.com / security/center/content/CiscoSecurityNotice/CVE-2015-0631
Vendor Advisory
securityfocus.com / bid/72700
securitytracker.com / id/1031780