CVE-2021-27803 (GCVE-0-2021-27803)

Vulnerability from cvelistv5 – Published: 2021-02-26 22:11 – Updated: 2025-12-18 14:57
VLAI
Summary
A vulnerability was discovered in how p2p/p2p_pd.c in wpa_supplicant before 2.10 processes P2P (Wi-Fi Direct) provision discovery requests. It could result in denial of service or other impact (potentially execution of arbitrary code), for an attacker within radio range.
Severity
7.5 (High)
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-12-18 14:57 UTC
CWE
Assigner
References
Show details on NVD website
To clipboard 

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                {
                  "name": "FEDORA-2021-3430f96019",
                  "refsource": "FEDORA",
                  "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KOGP2VIVVXXQ6CZ2HU4DKGPDB4WR24XF/"
                },
                {
                  "name": "[debian-lts-announce] 20210302 [SECURITY] [DLA 2581-1] wpa security update",
                  "refsource": "MLIST",
                  "url": "https://lists.debian.org/debian-lts-announce/2021/03/msg00003.html"
                },
                {
                  "name": "FEDORA-2021-99cad2b81f",
                  "refsource": "FEDORA",
                  "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IZGUR5XFHATVXTRAEJMODS7ROYHA56NX/"
                },
                {
                  "name": "FEDORA-2021-9b00febe54",
                  "refsource": "FEDORA",
                  "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SEHS2CFGH3KCSNPHBHNGN5SGV6QPMLZ4/"
                },
                {
                  "name": "DSA-4898",
                  "refsource": "DEBIAN",
                  "url": "https://www.debian.org/security/2021/dsa-4898"
                }
              ]
            }
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "assignerShortName": "mitre",
        "cveId": "CVE-2021-27803",
        "datePublished": "2021-02-26T22:11:27.000Z",
        "dateReserved": "2021-02-26T00:00:00.000Z",
        "dateUpdated": "2025-12-18T14:57:29.648Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.