System Platform Web UI Deserialization

published 2018-10-17 8y ago modified 2026-06-17 4mo ago also EUVD-2018-7487

cvss: 9.0; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 3.3%; EPSS 3.3% chance of exploitation in 30 days, percentile 88%
public exploits: 0; none known

A vulnerability in the Web UI component of Avaya Aura System Platform could allow a remote, unauthenticated user to perform a targeted deserialization attack that could result in remote code execution. Affected versions of System Platform includes 6.3.0 through 6.3.9 and 6.4.0 through 6.4.2.

Is CVE-2018-15616 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Exploit prediction

3.34% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

downloads.avaya.com https://downloads.avaya.com/css/P8/documents/101052865 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	3.0	9.0	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
NVD	3.0	9.8	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	7.5	AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

Avaya Avaya Aura® System Platform

Classification

Weakness

CWE-502 Deserialization of Untrusted Data

References

downloads.avaya.com /css/P8/documents/101052865
exploit, vendor-advisory

Sources

CVE List CVE-2018-15616
NVD CVE-2018-15616

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.