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CVE-2017-12371

24
FAUCET Score

CVE-2017-12371 is a critical remote code execution vulnerability in Cisco WebEx Network Recording Player, affecting its handling of Advanced Recording Format (ARF) and WebEx Recording Format (WRF) files. With a CVSS score of 9.6, this vulnerability allows an unauthenticated attacker to execute arbitrary code on a user's system by tricking them into opening a malicious file. While no public exploit code is available and it's not listed on CISA's KEV catalog, the vulnerability garnered significant community discussion and media coverage at the time, indicating its perceived severity.

Impacted Technologies

VendorProductVersion(s)CPE
t30CPE matchmatch criteria
cpe:2.3:a:cisco:webex_meetings:t30:*:*:*:*:*:*:*
t31CPE matchmatch criteria
cpe:2.3:a:cisco:webex_meetings:t31:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.6CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
6.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.98%
Probability of exploitation in next 30 days
EPSS Percentile
85.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0298 is in the 90th percentile among its peer group of 836 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.8 Bluesky, 0.5 Mastodon, and 1.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-20171129-webex-players
Vendor Advisory
securityfocus.com / bid/102017
Third Party AdvisoryVDB Entry
securitytracker.com / id/1039895
Third Party AdvisoryVDB Entry