Security readout for executives and security teams
Plain-English summary
CVE-2022-3278 is a NULL pointer dereference in Vim before 9.0.0552. It matters mainly where users or automated workflows open untrusted files with vulnerable Vim builds. The public sources rate it medium, with no KEV listing or cited evidence of active exploitation.
Executive priority
Treat this as routine security maintenance with moderate urgency, not an emergency. Prioritize developer endpoints, shared servers, and images that handle external or user-supplied files. No provided source confirms active exploitation.
Technical view
The CVE record describes CWE-476 in vim/vim prior to 9.0.0552. The CVSS 3.0 vector is 6.8: network attack vector, low complexity, low privileges, user interaction required, and potential confidentiality, integrity, and availability impact. Upstream fixed it in commit 69082916c8b5d321545d60b9f5facad0a2dd5a4e.
Likely exposure
Exposure is likely on systems running Vim packages older than 9.0.0552, including developer workstations, servers, containers, and Linux distributions that had not yet consumed vendor updates. Risk depends on whether users or workflows open untrusted content with Vim.
Exploitation context
The source bundle does not show CISA KEV listing or confirmed active exploitation. Public vulnerability and patch references exist, including huntr, upstream GitHub, Fedora advisories, and Gentoo GLSA, so technical details and fixes are publicly discoverable.
Researcher notes
Evidence is limited to the CVE description, CVSS vector, upstream patch, huntr reference, and distribution advisories. The bundle does not provide exploit maturity, exact vulnerable code path details, or platform-specific fixed package versions beyond the advisory links.
Mitigation direction
- Inventory Vim versions across workstations, servers, containers, and base images.
- Upgrade upstream Vim to 9.0.0552 or later where applicable.
- Apply fixed Fedora or Gentoo packages where those distributions are in scope.
- Limit opening untrusted files with vulnerable Vim until updates are applied.
- Monitor vendor advisories for platform-specific package names and fixed versions.
Validation and detection
- Compare installed Vim versions against upstream 9.0.0552 or vendor fixed package versions.
- Confirm package update records show the relevant Fedora or Gentoo advisory remediation.
- Check container and golden-image builds for inherited vulnerable Vim packages.
- Document any remaining vulnerable installations and compensating controls.
- Verify vulnerability scanners are using CVE data updated after September 23, 2022.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-476: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2022-3278 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.8 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:L
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:L2.14.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
6.8MediumVector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:L
Source materials
- CVE List V5 sourceCVE List V5
- https://huntr.dev/bounties/a9fad77e-f245-4ce9-ba15-c7d4c86c4612CVE reference
- https://github.com/vim/vim/commit/69082916c8b5d321545d60b9f5facad0a2dd5a4eCVE reference
- FEDORA-2022-40161673a3CVE reference · vendor-advisory
- FEDORA-2022-fff548cfabCVE reference · vendor-advisory
- FEDORA-2022-4bc60c32a2CVE reference · vendor-advisory
- GLSA-202305-16CVE reference · vendor-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
NULL Pointer Dereference
NULL Pointer Dereference represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.