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01 Record

CVE-2023-34289

Ashlar-Vellum Cobalt Heap-based Buffer Overflow Remote Code Execution Vulnerability

HighPUBLISHEDCNA: zdi
CNA base score7.8 CVSS v3.xCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

02 Description

Ashlar-Vellum Cobalt Heap-based Buffer Overflow Remote Code Execution Vulnerability

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.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total 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
0.39% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 33.8% of scored records. A rank, not a probability.
NVD base score
7.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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
2024-05-03 01:57Z2 YR AGO
Last updated
2024-09-18 18:28Z2 YR AGO
Reserved
2023-05-31
Assigning CNA
zdi
Record state
PUBLISHED
Severity
High (CVSS 7.8)
CNA CVSS vector
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weaknesses
  • CWE-122Heap-based Buffer OverflowVariant
Data version
5.1
Document digest
0ded74201242beab8a3c613c2a40274deabfabb8b31b122594cb212a1e0c7994

05 Affected products

VendorProductVersionsPlatforms
Ashlar-VellumCobaltAshlar-Vellum Cobalt 11 build 1111—
ashlarcobalt0 to < 12.0.1204.54—

06 References