CVE-2023-1170 | Heap-based Buffer Overflow in vim/vim

Exp

Heap-based Buffer Overflow in GitHub repository vim/vim prior to 9.0.1376.

Published: 2023-03-03 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-1170 is rated Exploit Available (55/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.48%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2023-1170

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2023-1170

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.05% 0.48% +0.43%
2 2026-03-21 0.05% 0.05% +0.01%
3 2026-03-04 — 0.05% —

Full EPSS history (13 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-1170

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.6 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 4.7 [email protected]
7.3 3.0 HIGH
CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.3 5.9 [email protected]

Weakness enumeration for CVE-2023-1170

OS Trackers for CVE-2023-1170

vendor priority summary link
alpine medium CVE-2023-1170: 1 source package rows (vim); 162 state rows across 7 repos (3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 6, open 156. https://security.alpinelinux.org/vuln/CVE-2023-1170
debian unimportant CVE-2023-1170 unimportant priority: Debian including 1 source packages (vim), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 4, open 1. https://security-tracker.debian.org/tracker/CVE-2023-1170
redhat low — https://access.redhat.com/security/cve/CVE-2023-1170
suse medium CVE-2023-1170 severity moderate: SUSE including 280 source package names (11.1-2.2.361:vim-9.0.1386-150000.5.37.1, 11.1-2.2.361:vim-data-common-9.0.1386-150000.5.37.1, …), 677 product×package rows across 189 product lines (Container ses/7.1/ceph/haproxy, Container suse/sle-micro-rancher/5.2, … (189 product lines)): Fixed 534, Known Affected 142, Will Not Fix 1. https://www.suse.com/security/cve/CVE-2023-1170/
ubuntu medium CVE-2023-1170 medium priority: Ubuntu including 1 source packages (vim), 7 status rows across 7 suites (bionic, focal, jammy, kinetic, trusty, upstream, xenial): released 7. https://ubuntu.com/security/CVE-2023-1170

Affected software / configurations for CVE-2023-1170

Vendor Product Version Raw CPE
vim vim < 9.0.1376 cpe:2.3:a:vim:vim:*:*:*:*:*:*:*:*

References for CVE-2023-1170

cvelogic Threat Intelligence