How severe is CVE-2020-29652?

CVE-2020-29652 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2020-29652 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-29652?

CVE-2020-29652 affects Golang Ssh. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-29652?

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-2020-29652 published?

CVE-2020-29652 was published on 2020-12-17 and last updated on 2026-06-17.

CVE-2020-29652

CVE-2020-29652 is a high-severity vulnerability in Golang Ssh with a CVSS 3.x base score of 7.5. 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-476.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Golang Ssh
Published: 2020-12-17
Last modified: 2026-06-17

Description

A nil pointer dereference in the golang.org/x/crypto/ssh component through v0.0.0-20201203163018-be400aefbc4c for Go allows remote attackers to cause a denial of service against SSH servers.

Frequently asked questions

What is CVE-2020-29652?: A nil pointer dereference in the golang.org/x/crypto/ssh component through v0.0.0-20201203163018-be400aefbc4c for Go allows remote attackers to cause a denial of service against SSH servers.
How severe is CVE-2020-29652?: CVE-2020-29652 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2020-29652 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-29652?: CVE-2020-29652 affects Golang Ssh. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-29652?: 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-2020-29652 published?: CVE-2020-29652 was published on 2020-12-17 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:golang:ssh:*:*:*:*:*:*:*:*

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CVE-2010-2495 — Critical (CVSS 10.0): The pppol2tp_xmit function in drivers/net/pppol2tp.c in the L2TP implementation in the Linux kernel before 2.6.34 does…
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