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CVE-2019-1813

22
FAUCET Score

CVE-2019-1813 is a medium-severity vulnerability affecting Cisco NX-OS Software's Image Signature Verification feature. An authenticated, local attacker with administrator credentials can exploit this flaw due to improper digital signature verification during CLI command execution, allowing them to install an unsigned, potentially malicious software image. The vulnerability has a CVSS score of 6.7, indicating high impact on confidentiality, integrity, and availability. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 7.0\(3\)i1\(x\), < 7.0\(3\)i7\(5\)CPE matchmatch criteria
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*
>= 9.2, < 9.2\(2\)CPE matchmatch criteria
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*
>= 7.0\(3\), < 7.0\(3\)f3\(5\)CPE matchmatch criteria
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*
< 7.0\(3\)i7\(5\)CPE matchmatch criteria
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.7MEDIUM

CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
0.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.34%
Probability of exploitation in next 30 days
EPSS Percentile
26.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0034 is in the 74th percentile among its peer group of 3,720 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 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/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-sisv2
Vendor Advisory
securityfocus.com / bid/108425
Broken LinkThird Party AdvisoryVDB Entry