How severe is CVE-2020-20335?

CVE-2020-20335 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-2020-20335 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-20335?

CVE-2020-20335 affects Kilo Project Kilo. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-20335?

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-2020-20335 published?

CVE-2020-20335 was published on 2023-06-20 and last updated on 2026-06-17.

CVE-2020-20335

CVE-2020-20335 is a high-severity vulnerability in Kilo Project Kilo 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-190.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-190
Affected product: Kilo Project Kilo
Published: 2023-06-20
Last modified: 2026-06-17

Description

Buffer Overflow vulnerability in Antirez Kilo before commit 7709a04ae8520c5b04d261616098cebf742f5a23 allows a remote attacker to cause a denial of service via the editorUpdateRow function in kilo.c.

Frequently asked questions

What is CVE-2020-20335?: Buffer Overflow vulnerability in Antirez Kilo before commit 7709a04ae8520c5b04d261616098cebf742f5a23 allows a remote attacker to cause a denial of service via the editorUpdateRow function in kilo.c.
How severe is CVE-2020-20335?: CVE-2020-20335 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-2020-20335 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-20335?: CVE-2020-20335 affects Kilo Project Kilo. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-20335?: 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-2020-20335 published?: CVE-2020-20335 was published on 2023-06-20 and last updated on 2026-06-17.

References

https://github.com/antirez/kilo/issues/60

Affected products (1)

cpe:2.3:a:kilo_project:kilo:*:*:*:*:*:*:*:*

More vulnerabilities in Kilo Project Kilo

CVE-2019-16096 — High (CVSS 7.5): Kilo 0.0.1 has a heap-based buffer overflow because there is an integer overflow in a calculation involving the number…

All CVEs affecting Kilo Project Kilo →

Other CWE-190 (Integer Overflow or Wraparound) vulnerabilities

CVE-2026-4689 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component. This vulnerability was…
CVE-2026-24814 — Critical (CVSS 10.0): Integer Overflow or Wraparound vulnerability in swoole swoole-src (thirdparty/hiredis modules). This vulnerability is…
CVE-2025-64721 — Critical (CVSS 10.0): Sandboxie is a sandbox-based isolation software for 32-bit and 64-bit Windows NT-based operating systems. In versions…
CVE-2015-5108 — Critical (CVSS 10.0): Integer overflow in Adobe Reader and Acrobat 10.x before 10.1.15 and 11.x before 11.0.12, Acrobat and Acrobat Reader DC…
CVE-2015-5097 — Critical (CVSS 10.0): Integer overflow in Adobe Reader and Acrobat 10.x before 10.1.15 and 11.x before 11.0.12, Acrobat and Acrobat Reader DC…
CVE-2013-2555 — Critical (CVSS 10.0): Integer overflow in Adobe Flash Player before 10.3.183.75 and 11.x before 11.7.700.169 on Windows and Mac OS X, before…

Browse all CWE-190 (Integer Overflow or Wraparound) vulnerabilities →