SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2023-28128

An unrestricted upload of file with dangerous type vulnerability exists in Avalanche versions 6.3.x and below that could allow an attacker to achieve a remove code execution.

HIGH 7.2EPSS 84.0%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 84.0%, higher than 100% of all known CVEs. Patch or mitigate before the next change window.

Description

An unrestricted upload of file with dangerous type vulnerability exists in Avalanche versions 6.3.x and below that could allow an attacker to achieve a remove code execution.

CVSS 3.1
7.2 HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS
84.02% probability · 100th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-434
Affected
ivanti/avalanche
Source
support@hackerone.com
EPSS trend
0%43%85%3 November 2026: 84.02%3 November 20263 November 2026

EPSS 84.0% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.