CVE-2025-4516

There is an issue in CPython when using `bytes.decode("unicode_escape", error="ignore|replace")`. If you are not using the "unicode_escape" encoding or an error handler your usage is not affected. To work-around this issue you may stop using the error= handler and instead wrap the bytes.decode() call in a try-except catching the DecodeError.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
UNKNOWN
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PSFCNA
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CISA-ADPADP
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CVEADP
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Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 3%
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
python2.7
plucky
dne
oracular
dne
noble
dne
jammy
not-affected
focal
not-affected
bionic
not-affected
xenial
not-affected
trusty
not-affected
python3.10
plucky
dne
oracular
dne
noble
dne
jammy
Fixed 3.10.12-1~22.04.10
released
focal
dne
python3.11
plucky
dne
oracular
dne
noble
dne
jammy
Fixed 3.11.0~rc1-1~22.04.1~esm4
released
focal
dne
python3.12
plucky
dne
oracular
Fixed 3.12.7-1ubuntu2.1
released
noble
Fixed 3.12.3-1ubuntu0.6
released
jammy
dne
focal
dne
python3.13
plucky
Fixed 3.13.3-1ubuntu0.1
released
oracular
ignored
noble
dne
jammy
dne
focal
dne
python3.14
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
dne
python3.4
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
dne
trusty
not-affected
python3.5
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
dne
xenial
not-affected
trusty
not-affected
python3.6
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
dne
bionic
Fixed 3.6.9-1~18.04ubuntu1.13+esm5
released
python3.7
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
dne
bionic
Fixed 3.7.5-2ubuntu1~18.04.2+esm6
released
python3.8
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
Fixed 3.8.10-0ubuntu1~20.04.18+esm1
released
bionic
Fixed 3.8.0-3ubuntu1~18.04.2+esm5
released
python3.9
plucky
dne
oracular
dne
noble
dne
jammy
dne
focal
Fixed 3.9.5-3ubuntu0~20.04.1+esm5
released