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CVE-2026-4962

A security flaw has been discovered in UltraVNC up to 1.6.4.0. Affected by this issue is some unknown functionality in the library version.dll of the component Service. The manipulation results in uncontrolled search path. The attack needs to be approached locally. This attack is characterized by high complexity. The exploitation is known to be difficult. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not resp
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:8ebb051e699d69d5aa6bb0285411a1451289fac18444c6a3cfc7686545b17450
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":6,"vectorString":"AV:L/AC:H/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR","version":"2.0"},"metric_type":"cvssV2_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:6b60b30b5ec9fc0273c24f0f30d2927b4d9bae36d8bd28641ed24b37e465c1de · sha256:0de3ad9fe67c4421… · /containers/cna/metrics/3/cvssV2_0

{"metric":{"baseScore":7.3,"baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P","version":"4.0"},"metric_type":"cvssV4_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:6b60b30b5ec9fc0273c24f0f30d2927b4d9bae36d8bd28641ed24b37e465c1de · sha256:0de3ad9fe67c4421… · /containers/cna/metrics/0/cvssV4_0

{"metric":{"baseScore":7,"baseSeverity":"HIGH","vectorString":"CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R","version":"3.0"},"metric_type":"cvssV3_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:6b60b30b5ec9fc0273c24f0f30d2927b4d9bae36d8bd28641ed24b37e465c1de · sha256:0de3ad9fe67c4421… · /containers/cna/metrics/2/cvssV3_0

{"metric":{"baseScore":7,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:6b60b30b5ec9fc0273c24f0f30d2927b4d9bae36d8bd28641ed24b37e465c1de · sha256:0de3ad9fe67c4421… · /containers/cna/metrics/1/cvssV3_1
cwe · 2 assertions

{"cweId":"CWE-426","description":"Untrusted Search Path","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:6b60b30b5ec9fc0273c24f0f30d2927b4d9bae36d8bd28641ed24b37e465c1de · sha256:0de3ad9fe67c4421… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-427","description":"Uncontrolled Search Path","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:6b60b30b5ec9fc0273c24f0f30d2927b4d9bae36d8bd28641ed24b37e465c1de · sha256:0de3ad9fe67c4421… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"cpes":["cpe:2.3:a:ultravnc:ultravnc:*:*:*:*:*:*:*:*"],"modules":["Service"],"product":"UltraVNC","vendor":"n/a","versions":[{"status":"affected","version":"1.6.0"},{"status":"affected","version":"1.6.1"},{"status":"affected","version":"1.6.2"},{"status":"affected","version":"1.6.3"},{"status":"affected","version":"1.6.4.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6b60b30b5ec9fc0273c24f0f30d2927b4d9bae36d8bd28641ed24b37e465c1de · sha256:0de3ad9fe67c4421… · /containers/cna/affected/0

Provider-owned CVSS observations

4 source assertions
{"metric":{"baseScore":6,"vectorString":"AV:L/AC:H/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR","version":"2.0"},"metric_type":"cvssV2_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:6b60b30b5ec9fc0273c24f0f30d2927b4d9bae36d8bd28641ed24b37e465c1de · sha256:0de3ad9fe67c4421… · /containers/cna/metrics/3/cvssV2_0
{"metric":{"baseScore":7.3,"baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P","version":"4.0"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:6b60b30b5ec9fc0273c24f0f30d2927b4d9bae36d8bd28641ed24b37e465c1de · sha256:0de3ad9fe67c4421… · /containers/cna/metrics/0/cvssV4_0
{"metric":{"baseScore":7,"baseSeverity":"HIGH","vectorString":"CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R","version":"3.0"},"metric_type":"cvssV3_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:6b60b30b5ec9fc0273c24f0f30d2927b4d9bae36d8bd28641ed24b37e465c1de · sha256:0de3ad9fe67c4421… · /containers/cna/metrics/2/cvssV3_0
{"metric":{"baseScore":7,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:6b60b30b5ec9fc0273c24f0f30d2927b4d9bae36d8bd28641ed24b37e465c1de · sha256:0de3ad9fe67c4421… · /containers/cna/metrics/1/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-426","description":"Untrusted Search Path","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:6b60b30b5ec9fc0273c24f0f30d2927b4d9bae36d8bd28641ed24b37e465c1de · sha256:0de3ad9fe67c4421… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-427","description":"Uncontrolled Search Path","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:6b60b30b5ec9fc0273c24f0f30d2927b4d9bae36d8bd28641ed24b37e465c1de · sha256:0de3ad9fe67c4421… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions
{"tags":["exploit"],"url":"https://drive.google.com/file/d/1QC-MrqGsfjr4phEN77krLFZHQN8S48U_/view"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6b60b30b5ec9fc0273c24f0f30d2927b4d9bae36d8bd28641ed24b37e465c1de · sha256:0de3ad9fe67c4421… · /containers/cna/references/3
{"name":"VDB-353839 | CTI Indicators (IOB, IOC, TTP, IOA)","tags":["signature","permissions-required"],"url":"https://vuldb.com/?ctiid.353839"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6b60b30b5ec9fc0273c24f0f30d2927b4d9bae36d8bd28641ed24b37e465c1de · sha256:0de3ad9fe67c4421… · /containers/cna/references/1
{"name":"VDB-353839 | UltraVNC Service version.dll uncontrolled search path","tags":["vdb-entry"],"url":"https://vuldb.com/?id.353839"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6b60b30b5ec9fc0273c24f0f30d2927b4d9bae36d8bd28641ed24b37e465c1de · sha256:0de3ad9fe67c4421… · /containers/cna/references/0
{"name":"Submit #777619 | UltraVNC 1.6.4.0 Uncontrolled Search Path-Privilege escalation with version.dll","tags":["third-party-advisory"],"url":"https://vuldb.com/?submit.777619"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6b60b30b5ec9fc0273c24f0f30d2927b4d9bae36d8bd28641ed24b37e465c1de · sha256:0de3ad9fe67c4421… · /containers/cna/references/2

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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