CVE-2025-71063

Credential and task interception via disabled TLS verification

Published Jan 12, 2026 · Updated Jan 12, 2026

Improper certificate validation in Errands before 46.2.10 allows man-in-the-middle attackers to intercept CalDAV credentials and task data. The CalDAV provider passes ssl_verify_cert=False to DAVClient, disabling certificate verification for configured server connections. Exposure requires a network position capable of intercepting the CalDAV connection; background synchronization can trigger it without user interaction.

CVSS severity8.2
High
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper certificate validation in Errands before 46.2.10 allows man-in-the-middle attackers to intercept CalDAV credentials and task data. The CalDAV provider passes ssl_verify_cert=False to DAVClient, disabling certificate verification for configured server connections. Exposure requires a network position capable of intercepting the CalDAV connection; background synchronization can trigger it without user interaction.

The record

CVE
CVE-2025-71063
Published
Jan 12, 2026
Updated
Jan 12, 2026
Vendor
Vlad Krupinskii
Product
Errands
Classifications
CWE-295, T1557
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 12, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 12, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <46.2.10

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Vlad Krupinskii · Errandsversion=0 <46.2.10

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
8.2MITRECVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-295Improper Certificate Validation
T1557Adversary-in-the-Middle

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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