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CVE-2019-1923

22
FAUCET Score

CVE-2019-1923 describes a vulnerability in Cisco Small Business SPA500 Series IP Phones (firmware 7.6.2SR5 and prior) that allows a physically proximate attacker to execute arbitrary commands. The vulnerability stems from improper input validation in the device's configuration interface. Exploitation requires physical access to the device and a USB storage device, potentially allowing an attacker to execute commands with elevated privileges. While rated Medium severity (CVSS 6.6) due to the physical access requirement, there is no known active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 7.6.2sr5CPE matchmatch criteria
cpe:2.3:o:cisco:spa501g_firmware:*:*:*:*:*:*:*:*
<= 7.6.2sr5CPE matchmatch criteria
cpe:2.3:o:cisco:spa502g_firmware:*:*:*:*:*:*:*:*
<= 7.6.2sr5CPE matchmatch criteria
cpe:2.3:o:cisco:spa504g_firmware:*:*:*:*:*:*:*:*
<= 7.6.2sr5CPE matchmatch criteria
cpe:2.3:o:cisco:spa508g_firmware:*:*:*:*:*:*:*:*
<= 7.6.2sr5CPE matchmatch criteria
cpe:2.3:o:cisco:spa509g_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.6MEDIUM

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

Attack Vector
PHYSICAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
0.7
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.47%
Probability of exploitation in next 30 days
EPSS Percentile
38.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0047 is in the 63rd percentile among its peer group of 170 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 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 0.3 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-20190717-spa500-command
Vendor Advisory
securityfocus.com / bid/109294
Third Party AdvisoryVDB Entry