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CVE-2022-3520

31
FAUCET Score

CVE-2022-3520 is a critical heap-based buffer overflow vulnerability affecting Vim versions prior to 9.0.0765. With a CVSS score of 9.8, it presents a severe risk, allowing unauthenticated attackers to achieve complete compromise of confidentiality, integrity, and availability over the network with low attack complexity. Despite its high severity, there is currently no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 9.0.0765CPE match
cpe:2.3:a:vim:vim:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.8HIGH

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.00%
Probability of exploitation in next 30 days
EPSS Percentile
59.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0100 is in the 44th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2022-3520Low

vim: Heap-based Buffer Overflow

Dec 2, 2022

References

security.netapp.com / advisory/ntap-20241115-0010
github.com / vim/vim/commit/36343ae0fb7247e060abfd35fb8e4337b33abb4b
PatchThird Party Advisory
huntr.dev / bounties/c1db3b70-f4fe-481f-8a24-0b1449c94246
ExploitPatchThird Party Advisory
security.gentoo.org / glsa/202305-16