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CVE-2026-9541

A security flaw has been discovered in Squirrel up to 3.2. Impacted is the function ReadObject of the file squirrel/sqobject.cpp of the component Cnut File Handler. Performing a manipulation results in heap-based buffer overflow. The attack is only possible with local access. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:c5d669f40ed28c35059adf6fcc3b355d1859c214be39da37e5aaa4fbacd93d6e
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 4 assertions

{"metric":{"baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","version":"3.0"},"metric_type":"cvssV3_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:be47113f57fa4be63e76f61c2657f45c5f1a7feb8bd6498c11807ac3d487388d · sha256:d364c915464173ea… · /containers/cna/metrics/2/cvssV3_0

{"metric":{"baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:be47113f57fa4be63e76f61c2657f45c5f1a7feb8bd6498c11807ac3d487388d · sha256:d364c915464173ea… · /containers/cna/metrics/1/cvssV3_1

{"metric":{"baseScore":4.3,"vectorString":"AV:L/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR","version":"2.0"},"metric_type":"cvssV2_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:be47113f57fa4be63e76f61c2657f45c5f1a7feb8bd6498c11807ac3d487388d · sha256:d364c915464173ea… · /containers/cna/metrics/3/cvssV2_0

{"metric":{"baseScore":4.8,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","version":"4.0"},"metric_type":"cvssV4_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:be47113f57fa4be63e76f61c2657f45c5f1a7feb8bd6498c11807ac3d487388d · sha256:d364c915464173ea… · /containers/cna/metrics/0/cvssV4_0
cwe · 2 assertions

{"cweId":"CWE-119","description":"Memory Corruption","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:be47113f57fa4be63e76f61c2657f45c5f1a7feb8bd6498c11807ac3d487388d · sha256:d364c915464173ea… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-122","description":"Heap-based Buffer Overflow","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:be47113f57fa4be63e76f61c2657f45c5f1a7feb8bd6498c11807ac3d487388d · sha256:d364c915464173ea… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"cpes":["cpe:2.3:a:squirrel:squirrel:*:*:*:*:*:*:*:*"],"modules":["Cnut File Handler"],"product":"Squirrel","vendor":"n/a","versions":[{"status":"affected","version":"3.0"},{"status":"affected","version":"3.1"},{"status":"affected","version":"3.2"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:be47113f57fa4be63e76f61c2657f45c5f1a7feb8bd6498c11807ac3d487388d · sha256:d364c915464173ea… · /containers/cna/affected/0

Provider-owned CVSS observations

4 source assertions
{"metric":{"baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","version":"3.0"},"metric_type":"cvssV3_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:be47113f57fa4be63e76f61c2657f45c5f1a7feb8bd6498c11807ac3d487388d · sha256:d364c915464173ea… · /containers/cna/metrics/2/cvssV3_0
{"metric":{"baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:be47113f57fa4be63e76f61c2657f45c5f1a7feb8bd6498c11807ac3d487388d · sha256:d364c915464173ea… · /containers/cna/metrics/1/cvssV3_1
{"metric":{"baseScore":4.3,"vectorString":"AV:L/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR","version":"2.0"},"metric_type":"cvssV2_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:be47113f57fa4be63e76f61c2657f45c5f1a7feb8bd6498c11807ac3d487388d · sha256:d364c915464173ea… · /containers/cna/metrics/3/cvssV2_0
{"metric":{"baseScore":4.8,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","version":"4.0"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:be47113f57fa4be63e76f61c2657f45c5f1a7feb8bd6498c11807ac3d487388d · sha256:d364c915464173ea… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions
{"cweId":"CWE-119","description":"Memory Corruption","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:be47113f57fa4be63e76f61c2657f45c5f1a7feb8bd6498c11807ac3d487388d · sha256:d364c915464173ea… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-122","description":"Heap-based Buffer Overflow","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:be47113f57fa4be63e76f61c2657f45c5f1a7feb8bd6498c11807ac3d487388d · sha256:d364c915464173ea… · /containers/cna/problemTypes/0/descriptions/0

Source references

6 source assertions
{"tags":["exploit"],"url":"https://github.com/albertodemichelis/squirrel/issues/327"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:be47113f57fa4be63e76f61c2657f45c5f1a7feb8bd6498c11807ac3d487388d · sha256:d364c915464173ea… · /containers/adp/0/references/0
{"tags":["issue-tracking"],"url":"https://github.com/albertodemichelis/squirrel/issues/327"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:be47113f57fa4be63e76f61c2657f45c5f1a7feb8bd6498c11807ac3d487388d · sha256:d364c915464173ea… · /containers/cna/references/3
{"tags":["exploit"],"url":"https://github.com/biniamf/pocs/tree/main/squirrel-sqobject-readobject-neg-len-oob"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:be47113f57fa4be63e76f61c2657f45c5f1a7feb8bd6498c11807ac3d487388d · sha256:d364c915464173ea… · /containers/cna/references/4
{"name":"Submit #814826 | albertodemichelis squirrel 3.2 Heap-based Buffer Overflow","tags":["third-party-advisory"],"url":"https://vuldb.com/submit/814826"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:be47113f57fa4be63e76f61c2657f45c5f1a7feb8bd6498c11807ac3d487388d · sha256:d364c915464173ea… · /containers/cna/references/2
{"name":"VDB-365602 | Squirrel Cnut File sqobject.cpp ReadObject heap-based overflow","tags":["vdb-entry","technical-description"],"url":"https://vuldb.com/vuln/365602"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:be47113f57fa4be63e76f61c2657f45c5f1a7feb8bd6498c11807ac3d487388d · sha256:d364c915464173ea… · /containers/cna/references/0
{"name":"VDB-365602 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"],"url":"https://vuldb.com/vuln/365602/cti"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:be47113f57fa4be63e76f61c2657f45c5f1a7feb8bd6498c11807ac3d487388d · sha256:d364c915464173ea… · /containers/cna/references/1

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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