How severe is CVE-2018-6353?

CVE-2018-6353 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-6353 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-6353?

CVE-2018-6353 primarily affects Electrum. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-6353?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-6353 published?

CVE-2018-6353 was published on 2018-01-27 and last updated on 2026-06-17.

CVE-2018-6353

CVE-2018-6353 is a high-severity vulnerability in Electrum with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 7.2
EPSS exploit prediction: 0% (38th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Electrum
Published: 2018-01-27
Last modified: 2026-06-17

Description

The Python console in Electrum through 2.9.4 and 3.x through 3.0.5 supports arbitrary Python code without considering (1) social-engineering attacks in which a user pastes code that they do not understand and (2) code pasted by a physically proximate attacker at an unattended workstation, which makes it easier for attackers to steal Bitcoin via hook code that runs at a later time when the wallet password has been entered, a different vulnerability than CVE-2018-1000022.

Frequently asked questions

What is CVE-2018-6353?: The Python console in Electrum through 2.9.4 and 3.x through 3.0.5 supports arbitrary Python code without considering (1) social-engineering attacks in which a user pastes code that they do not understand and (2) code pasted by a physically proximate attacker at an unattended workstation, which makes it easier for attackers to steal Bitcoin via hook code that runs at a later time when the wallet password has been entered, a different vulnerability than CVE-2018-1000022.
How severe is CVE-2018-6353?: CVE-2018-6353 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-6353 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-6353?: CVE-2018-6353 primarily affects Electrum. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-6353?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-6353 published?: CVE-2018-6353 was published on 2018-01-27 and last updated on 2026-06-17.

References

Affected products (6)

cpe:2.3:a:electrum:electrum:*:*:*:*:*:*:*:*
cpe:2.3:a:electrum:electrum:3.0.0:*:*:*:*:*:*:*
cpe:2.3:a:electrum:electrum:3.0.1:*:*:*:*:*:*:*
cpe:2.3:a:electrum:electrum:3.0.2:*:*:*:*:*:*:*
cpe:2.3:a:electrum:electrum:3.0.3:*:*:*:*:*:*:*
cpe:2.3:a:electrum:electrum:3.0.5:*:*:*:*:*:*:*

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