Exploited vulnerabilitiesBriefPublic record

MongoBleed (CVE-2025-14847)

zlib-compressed message handling leaks uninitialized heap memory without authentication.

Disclosed

What happened

  • Fixed: 8.2.3, 8.0.17, 7.0.28, 6.0.27 and others. KEV: 29 Dec 2025. Public PoC. Tens of thousands of exposed servers.

Live scores

Live scores

CVE-2025-14847
EPSS
0.832
very likely to be attacked soon
VEDAS
0.987
strong exploit evidence
On CISA KEV
Yes, since 2025-12-29
Detection rule
Nuclei · Suricata
EPSS (chance of attack)
10No cve-scores data 2026-02-22 to 2026-08-08no data0.1Added to CISA KEV 2025-12-29CVE-2025-14847 EPSS over time2025-122026-11-01
VEDAS (exploit evidence)
10No cve-scores data 2026-02-22 to 2026-08-08no data0.9Added to CISA KEV 2025-12-29CVE-2025-14847 VEDAS over time2025-122026-11-01

Thin horizontal line: the “likely” (EPSS 0.10) or “strong” (VEDAS 0.90) threshold. Shaded “no data” areas are periods when cve-scores did not publish. The vertical line is the day CISA added it to its exploited list.

Sources

This is a brief: a short, sourced summary from our incident tracking. Full advisories add commands to check whether you are affected.