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CVE-2018-15377

26
FAUCET Score

CVE-2018-15377 is a memory leak vulnerability in the Cisco Network Plug and Play agent affecting Cisco IOS and IOS XE Software. An unauthenticated, remote attacker can exploit this by sending invalid data, leading to a device reload. This vulnerability is rated as High severity (CVSS 8.6), indicating a low attack complexity and significant impact on availability. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
15.7\(3.1s\)mCPE matchmatch criteria
cpe:2.3:o:cisco:ios:15.7\(3.1s\)m:*:*:*:*:*:*:*
denali-16.3.6CPE matchmatch criteria
cpe:2.3:o:cisco:ios:denali-16.3.6:*:*:*:*:*:*:*
everest-16.5.1CPE matchmatch criteria
cpe:2.3:o:cisco:ios:everest-16.5.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.6HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
4.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.59%
Probability of exploitation in next 30 days
EPSS Percentile
73.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0159 is in the 55th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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

ics-cert.us-cert.gov / advisories/ICSA-19-094-02
Third Party AdvisoryUS Government Resource
tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-20180926-pnp-memleak
Vendor Advisory