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CVE-2018-18957

49
FAUCET Score

CVE-2018-18957 is a critical stack-based buffer overflow vulnerability (CWE-787) affecting libIEC61850 version 1.3, specifically within the prepareGooseBuffer function in goose/goose_publisher.c. With a CVSS v3 score of 9.8 (CRITICAL), it allows unauthenticated attackers to achieve full confidentiality, integrity, and availability compromise over the network with low attack complexity. While not listed in CISA's KEV catalog, exploit code is publicly available on ExploitDB, and the vulnerability has garnered significant community discussion, indicating potential for exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
1.3CPE matchmatch criteria
cpe:2.3:a:mz-automation:libiec61850:1.3:*:*:*:*:*:*:*

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
11.57%
Probability of exploitation in next 30 days
EPSS Percentile
95.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-45798 · Nov 6, 2018
This CVE's current EPSS score of 0.1157 is in the 91st percentile among its peer group of 36,862 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

github.com / mz-automation/libiec61850/issues/83
ExploitThird Party Advisory
exploit-db.com / exploits/45798
ExploitThird Party AdvisoryVDB Entry