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CVE-2021-1536

25
FAUCET Score

CVE-2021-1536 is a DLL injection vulnerability affecting Cisco Webex Meetings Desktop App for Windows, Webex Meetings Server, Webex Network Recording Player, and Webex Teams for Windows. An authenticated, local attacker can exploit this by inserting a malicious configuration file, leading to arbitrary code execution with elevated privileges. While rated High severity (CVSS 7.8), there is no known active exploitation, public exploit code, or significant community discussion, suggesting a low current threat level.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:cisco:webex_meetings_desktop:-:*:*:*:*:windows:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:cisco:webex_meetings_online:-:*:*:*:*:*:*:*
4.0CPE matchmatch criteria
cpe:2.3:a:cisco:webex_meetings_server:4.0:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:cisco:webex_network_recording_player:-:*:*:*:*:windows:*:*
3.0.15485.0CPE matchmatch criteria
cpe:2.3:a:cisco:webex_teams:3.0.15485.0:*:*:*:*:windows:*:*

CVSS Data

CVSS version used by this source: 3.1

4.8MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
1.3
Impact Score
3.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.33%
Probability of exploitation in next 30 days
EPSS Percentile
25.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0033 is in the 23rd percentile among its peer group of 11,616 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 0.3 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-webex-dll-inject-XNmcSGTU
Vendor Advisory