9.6

CVE-2015-8789: matroska libebml

Modified
AliasesUBUNTU-CVE-2015-8789DEBIAN-CVE-2015-8789
Published 29-01-2016Last modified 06-08-2024

Vulnerability summary

CVE-2015-8789 is a critical (CVSS 9.6) vulnerability in matroska libebml. EPSS estimates a 2.13% chance of exploitation in the next 30 days, higher than 81.9% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 9.6 (NVD); no exploitation reported by the 5 checked sources; EPSS 2% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
9.6/10
010
Critical · v3.0 (NVD)
EPSS score
2.13%
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

Advisory lineage

Upstream 0 · Downstream 1 · Duplicates 1
DSA-3538-1CVE-2016-1515

Timeline

  1. 29-01-2016
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

Use-after-free vulnerability in the EbmlMaster::Read function in libEBML before 1.3.3 allows context-dependent attackers to have unspecified impact via a "deeply nested element with infinite size" followed by another element of an upper level in an EBML document.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

2.13%

Chance of exploitation in the next 30 days

Percentile

82%

Versus all other CVEs

30-day change

No change 0.00 pp

From 2.13% on 04-10-2026

04-10-202603-11-2026

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

No weakness data has been published for this record.

Affected systems

Version check

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

Debian1 product
  • libebml< 1.3.3-1
Matroska1 product
Ubuntu1 product
  • libebml< 1.3.0-2+deb8u1build0.14.04.1

3 vendors · 3 products

References

10 links