CVE-2020-12755

Password exposure via unconditional KWallet caching

Published May 9, 2020 · Updated Aug 4, 2024

Information exposure in KDE kio-extras 20.04.0 and earlier allows physically proximate attackers to read FISH passwords from KWallet. fishProtocol::establishConnection in fish/fish.cpp calls cacheAuthentication even when keepPassword is unset, disregarding the cleared Remember option. The condition requires password authentication over fish://, and disclosure requires access to the user's stored wallet through KWalletManager.

CVSS severity3.3
Low
EPSS probability0.37%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information exposure in KDE kio-extras 20.04.0 and earlier allows physically proximate attackers to read FISH passwords from KWallet. fishProtocol::establishConnection in fish/fish.cpp calls cacheAuthentication even when keepPassword is unset, disregarding the cleared Remember option. The condition requires password authentication over fish://, and disclosure requires access to the user's stored wallet through KWalletManager.

The record

CVE
CVE-2020-12755
Published
May 9, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1555
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 9, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

2.1NIST NVDAV:L/AC:L/Au:N/C:P/I:N/A:N
3.3NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

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)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1555Credentials from Password Stores

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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