SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-30497

Ivanti Avalanche (Premise) 6.3.2 allows remote unauthenticated users to read arbitrary files via Absolute Path Traversal.

HIGH 7.5EPSS 96.6%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 96.6%, higher than 100% of all known CVEs. Patch or mitigate before the next change window.

Description

Ivanti Avalanche (Premise) 6.3.2 allows remote unauthenticated users to read arbitrary files via Absolute Path Traversal. The imageFilePath parameter processed by the /AvalancheWeb/image endpoint is not verified to be within the scope of the image folder, e.g., the attacker can obtain sensitive information via the C:/Windows/system32/config/system.sav value.

CVSS 3.1
7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS
96.58% probability · 100th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-22
Affected
ivanti/avalanche
Source
cve@mitre.org
EPSS trend
0%50%100%26 October 2026: 96.58%26 October 202626 October 2026

EPSS 96.6% since 26 October 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.