How severe is CVE-2021-32826?

CVE-2021-32826 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2021-32826 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-32826?

CVE-2021-32826 affects Proxyee-down Project Proxyee-down. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-32826?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-32826 published?

CVE-2021-32826 was published on 2021-08-16 and last updated on 2026-06-17.

CVE-2021-32826

CVE-2021-32826 is a medium-severity vulnerability in Proxyee-down Project Proxyee-down with a CVSS 3.x base score of 6.8. 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: Medium (CVSS 3.x base score 6.8)
CVSS v2: 9.3
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Proxyee-down Project Proxyee-down
Published: 2021-08-16
Last modified: 2026-06-17

Description

Proxyee-Down is open source proxy software. An attacker being able to provide an extension script (eg: through a MiTM attack or by hosting a malicious extension) may be able to run arbitrary commands on the system running Proxyee-Down. For more details including a PoC see the referenced GHSL-2021-053. As of the writing of this CVE there is currently no patched version.

Frequently asked questions

What is CVE-2021-32826?: Proxyee-Down is open source proxy software. An attacker being able to provide an extension script (eg: through a MiTM attack or by hosting a malicious extension) may be able to run arbitrary commands on the system running Proxyee-Down. For more details including a PoC see the referenced GHSL-2021-053. As of the writing of this CVE there is currently no patched version.
How severe is CVE-2021-32826?: CVE-2021-32826 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2021-32826 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-32826?: CVE-2021-32826 affects Proxyee-down Project Proxyee-down. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-32826?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-32826 published?: CVE-2021-32826 was published on 2021-08-16 and last updated on 2026-06-17.

References

https://securitylab.github.com/advisories/GHSL-2021-053-proxyee-down/

Affected products (1)

cpe:2.3:a:proxyee-down_project:proxyee-down:-:*:*:*:*:*:*:*

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