CVE-2023-45232 | Infinite loop in EDK II Network Package

EDK2's Network Package is susceptible to an infinite loop vulnerability when parsing unknown options in the Destination Options header of IPv6. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Availability.

Published: 2024-01-16 Last update: 2025-11-04 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-45232 is rated Moderate Risk (59.4/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.10%). EPSS rose +1.72% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

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

Exploit prediction scoring system (EPSS) score for CVE-2023-45232

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 0.38% 2.10% +1.72%
2 2026-06-11 0.46% 0.38% -0.08%
3 2026-05-29 — 0.46% —

Full EPSS history (23 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-45232

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
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:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
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:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]

Weakness enumeration for CVE-2023-45232

OS Trackers for CVE-2023-45232

vendor priority summary link
alpine high CVE-2023-45232: 1 source package rows (edk2); 7 state rows across 4 repos (3.19-community, 3.20-community, 3.22-community, edge-community); fixed 0, open 7. https://security.alpinelinux.org/vuln/CVE-2023-45232
debian not yet assigned CVE-2023-45232 not yet assigned priority: Debian including 1 source packages (edk2), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2023-45232
redhat medium — https://access.redhat.com/security/cve/CVE-2023-45232
suse high CVE-2023-45232 severity important: SUSE including 54 source package names (edk2-ovmf-20220126gitbb1bba3d77-13.el8_10, edk2-ovmf-20231122-6.el9, …), 123 product×package rows across 34 product lines (SUSE Enterprise Storage 7.1, SUSE Liberty Linux 8, … (34 product lines)): Fixed 114, Known Not Affected 9. https://www.suse.com/security/cve/CVE-2023-45232/
ubuntu medium CVE-2023-45232 medium priority: Ubuntu including 1 source packages (edk2), 12 status rows across 12 suites (bionic, focal, jammy, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 4, needs-triage 3, released 3, ignored 2. https://ubuntu.com/security/CVE-2023-45232

Affected software / configurations for CVE-2023-45232

Vendor Product Version Raw CPE
tianocore edk2 <= 202311 cpe:2.3:a:tianocore:edk2:*:*:*:*:*:*:*:*

References for CVE-2023-45232

cvelogic Threat Intelligence