CVE-2026-2644 (GCVE-0-2026-2644)

Vulnerability from cvelistv5 – Published: 2026-02-18 07:02 – Updated: 2026-02-18 07:02
VLAI?
Title
niklasso minisat DIMACS File SolverTypes.h value out-of-bounds
Summary
A weakness has been identified in niklasso minisat up to 2.2.0. This issue affects the function Solver::value in the library core/SolverTypes.h of the component DIMACS File Parser. This manipulation of the argument variable index with the input 2147483648 causes out-of-bounds read. The attack needs to be launched locally. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
Severity ?
4.8 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
3.3 (Low)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
3.3 (Low)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
CWE
Assigner
References
Impacted products
Vendor Product Version
niklasso minisat Affected: 2.0
Affected: 2.1
Affected: 2.2.0
Create a notification for this product.
Credits
Oneafter (VulDB User)
Show details on NVD website
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "modules": [
            "DIMACS File Parser"
          ],
          "product": "minisat",
          "vendor": "niklasso",
          "versions": [
            {
              "status": "affected",
              "version": "2.0"
            },
            {
              "status": "affected",
              "version": "2.1"
            },
            {
              "status": "affected",
              "version": "2.2.0"
            }
          ]
        }
      ],
      "credits": [
        {
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          "type": "reporter",
          "value": "Oneafter (VulDB User)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A weakness has been identified in niklasso minisat up to 2.2.0. This issue affects the function Solver::value in the library core/SolverTypes.h of the component DIMACS File Parser. This manipulation of the argument variable index with the input 2147483648 causes out-of-bounds read. The attack needs to be launched locally. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "baseScore": 4.8,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P",
            "version": "4.0"
          }
        },
        {
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            "baseScore": 3.3,
            "baseSeverity": "LOW",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R",
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            "version": "2.0"
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      "problemTypes": [
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              "description": "Out-of-Bounds Read",
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              "type": "CWE"
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        {
          "descriptions": [
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              "description": "Memory Corruption",
              "lang": "en",
              "type": "CWE"
            }
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-18T07:02:06.761Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
      },
      "references": [
        {
          "name": "VDB-346406 | niklasso minisat DIMACS File SolverTypes.h value out-of-bounds",
          "tags": [
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://vuldb.com/?id.346406"
        },
        {
          "name": "VDB-346406 | CTI Indicators (IOB, IOC, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/?ctiid.346406"
        },
        {
          "name": "Submit #752775 | niklasso minisat master-branch Heap-based Buffer Overflow",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/?submit.752775"
        },
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/niklasso/minisat/issues/55"
        },
        {
          "tags": [
            "exploit",
            "issue-tracking"
          ],
          "url": "https://github.com/niklasso/minisat/issues/55#issue-3832527387"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://github.com/niklasso/minisat/"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-02-17T00:00:00.000Z",
          "value": "Advisory disclosed"
        },
        {
          "lang": "en",
          "time": "2026-02-17T01:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2026-02-17T21:44:35.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "niklasso minisat DIMACS File SolverTypes.h value out-of-bounds"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2026-2644",
    "datePublished": "2026-02-18T07:02:06.761Z",
    "dateReserved": "2026-02-17T20:39:31.868Z",
    "dateUpdated": "2026-02-18T07:02:06.761Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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  }
}


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.