CVE-2026-88173

Status: AnalyzedHigh (8.1)—
Severity8.1High · CVSS 3.1
Exploitation probability0.51 %higher than 42% of CVEs
Active exploitationNonot in the CISA catalog
Public exploitNot knownno public code found

Use after free in Windows Background Intelligent Transfer Service (BITS) allows an unauthorized attacker to execute code over a network.

CVSS

Base score
8.1
Version
3.1
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days
0.51 %
Percentile among all scored CVEs
42
Score date
10/20/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

El vector AV:N/PR:N/UI:N indica red sin privilegios ni interacción (T1190); la descripción dice solo 'ejecutar código' sin intérprete concreto, por lo que T1059 padre.

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

ATT&CK mitigations that cover these techniques

Affected technologies (7)

CWEs

References

Show 1 references

Raw JSON (NVD)

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