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01 Record

CVE-2024-23527

An out-of-bounds read vulnerability in WLAvalancheService component of Ivanti Avalanche before 6.4.3, in certain conditions can allow an unauthenticated remote attacker to read sensitive information

MediumPUBLISHEDCNA: hackerone
CNA base score5.3 CVSS v3.xCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

02 Description

An out-of-bounds read vulnerability in WLAvalancheService component of Ivanti Avalanche before 6.4.3, in certain conditions can allow an unauthenticated remote attacker to read sensitive information

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
1.98% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 80.4% of scored records. A rank, not a probability.
NVD base score
7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD analysis status
Analyzed. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2024-04-24 23:12Z2 YR AGO
Last updated
2025-03-24 19:55Z1 YR AGO
Reserved
2024-01-18
Assigning CNA
hackerone
Record state
PUBLISHED
Severity
Medium (CVSS 5.3)
CNA CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weaknesses
Data version
5.1
Document digest
d336557f837e00a396af1608467a8cbf963b2dc7dc714d62d4c4a65fc3f94ae9

05 Affected products

VendorProductVersionsPlatforms
IvantiAvalanche6.4.3 to < 6.4.3, 6.3.1 to < 6.4.3—

06 References