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CVE-2019-5600

33
FAUCET Score

CVE-2019-5600 is a critical buffer overflow vulnerability in the iconv implementation of FreeBSD versions 12.0-STABLE, 12.0-RELEASE, 11.3-PRERELEASE, 11.3-RC3, and 11.2-RELEASE. This flaw allows an unauthenticated attacker to write past the end of an output buffer, potentially leading to denial of service, incorrect program behavior, or remote code execution. With a CVSS score of 9.8 (Critical), it presents a high risk due to its network-based attack vector and low attack complexity. While there are no known public exploits or active exploitation, the vulnerability has garnered significant community discussion, indicating awareness within the security community.

Impacted Technologies

VendorProductVersion(s)CPE
11.2CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:11.2:-:*:*:*:*:*:*
11.2CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:11.2:p10:*:*:*:*:*:*
11.2CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:11.2:p2:*:*:*:*:*:*
11.2CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:11.2:p3:*:*:*:*:*:*
11.2CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:11.2:p4:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
4.86%
Probability of exploitation in next 30 days
EPSS Percentile
91.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0486 is in the 85th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 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

Remediation records are not available for this CVE.

References

packetstormsecurity.com / files/153520/FreeBSD-Security-Advisory-FreeBSD-SA-19-09.iconv.html
Third Party AdvisoryVDB Entry
security.freebsd.org / advisories/FreeBSD-SA-19:09.iconv.asc
Vendor Advisory