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CVE-2019-12658

23
FAUCET Score

CVE-2019-12658 describes a denial-of-service vulnerability in Cisco IOS XE Software, stemming from ineffective filesystem resource management. An unauthenticated, remote attacker can exploit this by sending specific messages to operating system log files, exhausting filesystem space. This high-severity vulnerability (CVSS 7.5) has a low attack complexity and can cause devices to crash and reload, leading to an extended DoS condition. There is no known active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
16.6.1CPE matchmatch criteria
cpe:2.3:o:cisco:ios_xe:16.6.1:*:*:*:*:*:*:*
16.8.1CPE matchmatch criteria
cpe:2.3:o:cisco:ios_xe:16.8.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.6HIGH

CVSS:3.0/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
3.0

Exploit Intelligence

EPSS Score
1.97%
Probability of exploitation in next 30 days
EPSS Percentile
78.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0197 is in the 62nd percentile among its peer group of 51,551 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

tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-20190925-iosxe-fsdos
Vendor Advisory