8.1

CVE-2016-7144: unrealircd Improper Authentication

Modified
Published 18-01-2017Last modified 06-08-2024

Vulnerability summary

CVE-2016-7144 is a high (CVSS 8.1) Improper Authentication vulnerability in unrealircd. EPSS estimates a 1.27% chance of exploitation in the next 30 days, higher than 70.2% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 8.1 (NVD); no exploitation reported by the 5 checked sources; EPSS 1% (FIRST, 13-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
8.1/10
010
High · v3.0 (NVD)
EPSS score
1.27%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Timeline

  1. 18-01-2017
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

The m_authenticate function in modules/m_sasl.c in UnrealIRCd before 3.2.10.7 and 4.x before 4.0.6 allows remote attackers to spoof certificate fingerprints and consequently log in as another user via a crafted AUTHENTICATE parameter.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

1.27%

Chance of exploitation in the next 30 days

Percentile

70%

Versus all other CVEs

30-day change

No change 0.00 pp

From 1.27% on 14-10-2026

14-10-202613-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Unrealircd1 product
  • unrealircdEOL≤ 3.2.10.5 | 4.0.0 | 4.0.1 | 4.0.2 | 4.0.3 | 4.0.3.1 | 4.0.4 | 4.0.5

1 vendor · 1 product

References

5 links