CVE-2022-36944

Exp

Scala 2.13.x before 2.13.9 has a Java deserialization chain in its JAR file. On its own, it cannot be exploited. There is only a risk in conjunction with Java object deserialization within an application. In such situations, it allows attackers to erase contents of arbitrary files, make network connections, or possibly run arbitrary code (specifically, Function0 functions) via a gadget chain.

Published: 2022-09-23 Last update: 2025-05-27 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2022-36944 is rated High Exploit Risk (91.3/100): CVSS Critical severity, with high exploitation likelihood (EPSS 67.81%, 99th percentile). 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +2.56% over the last day, indicating growing attacker interest. 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-2022-36944

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

Exploit prediction scoring system (EPSS) score for CVE-2022-36944

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 2026-04-28 65.25% 67.81% +2.56%
2 2026-04-09 70.25% 65.25% -5.00%
3 2026-03-04 — 70.25% —

Full EPSS history (61 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-36944

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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: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.
 3.9 5.9 [email protected]
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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: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.
 3.9 5.9 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2022-36944

GitHub Security Advisory for CVE-2022-36944

GHSA-8qv5-68g4-248j · Severity: critical · Ecosystem: maven — Scala subject to file deletion, code execution due to Java deserialization chain with LazyList object deserialization

OS Trackers for CVE-2022-36944

vendor priority summary link
debian unimportant CVE-2022-36944 unimportant priority: Debian including 1 source packages (scala), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2022-36944
redhat high — https://access.redhat.com/security/cve/CVE-2022-36944
suse high — https://www.suse.com/security/cve/CVE-2022-36944/
ubuntu medium CVE-2022-36944 medium priority: Ubuntu including 1 source packages (scala), 12 status rows across 12 suites (bionic, focal, jammy, kinetic, lunar, mantic, noble, oracular, plucky, trusty, upstream, xenial): not-affected 6, ignored 5, released 1. https://ubuntu.com/security/CVE-2022-36944

Affected software / configurations for CVE-2022-36944

Vendor Product Version Raw CPE
scala-lang scala >= 2.13.0, < 2.13.9 cpe:2.3:a:scala-lang:scala:*:*:*:*:*:*:*:*
scala-lang scala-collection-compat < 2.9.0 cpe:2.3:a:scala-lang:scala-collection-compat:*:*:*:*:*:*:*:*
fedoraproject fedora 35 cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
fedoraproject fedora 36 cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*

References for CVE-2022-36944

cvelogic Threat Intelligence