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DEBIAN-CVE-2026-48850

Type: advisorySource: OSV1 source record

PuTTY 0.72 before 0.84 has a double free in RSA KEX.

Announced Source revision 1
Original source ↗

DEBIAN-CVE-2026-48850

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:DEBIAN-CVE-2026-48850

putty

Source reference: /affected/0/package/name

Affected versions
0.78-2

Source reference: /affected/0/versions

0.78-2+deb12u1

Source reference: /affected/0/versions

0.78-2+deb12u2

Source reference: /affected/0/versions

0.78-3

Source reference: /affected/0/versions

0.79-1

Source reference: /affected/0/versions

0.80-1

Source reference: /affected/0/versions

0.81-1

Source reference: /affected/0/versions

0.81-2

Source reference: /affected/0/versions

0.81-3

Source reference: /affected/0/versions

0.82-1

Source reference: /affected/0/versions

0.82-2

Source reference: /affected/0/versions

0.83-1

Source reference: /affected/0/versions

0.83-2

Source reference: /affected/0/versions

0.83-3

Source reference: /affected/0/versions

0.84-1

Source reference: /affected/0/versions

0.85-3

Source reference: /affected/0/versions

Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

putty

Source reference: /affected/1/package/name

Affected versions
0.83-3

Source reference: /affected/1/versions

0.84-1

Source reference: /affected/1/versions

0.85-3

Source reference: /affected/1/versions

Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

putty

Source reference: /affected/2/package/name

Affected versions
0.83-3

Source reference: /affected/2/versions

Fixed versions
0.84-1

Source reference: /affected/2/ranges

Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "putty",
      "purl": "pkg:deb/debian/putty?arch=source&distro=bookworm",
      "ecosystem": "Debian:12"
    },
    "versions": [
      "0.78-2",
      "0.78-2+deb12u1",
      "0.78-2+deb12u2",
      "0.78-3",
      "0.79-1",
      "0.80-1",
      "0.81-1",
      "0.81-2",
      "0.81-3",
      "0.82-1",
      "0.82-2",
      "0.83-1",
      "0.83-2",
      "0.83-3",
      "0.84-1",
      "0.85-3"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-48850.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "putty",
      "purl": "pkg:deb/debian/putty?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "0.83-3",
      "0.84-1",
      "0.85-3"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-48850.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "0.84-1"
          }
        ]
      }
    ],
    "package": {
      "name": "putty",
      "purl": "pkg:deb/debian/putty?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "0.83-3"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-48850.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#56582 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement