CVE-2021-3757
CRITICALCVSS 9.8/10EPSS 1.60%
Last modified
CVE-2021-3757 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. immer is vulnerable to Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution'). EPSS estimates a 1.60% chance of exploitation in the next 30 days.
Description
immer is vulnerable to Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Immer Project | Immer | <= 9.0.5 |
References
- https://github.com/immerjs/immer/commit/fa671e55ee9bd42ae08cc239102b665a23958237Patch, Third Party Advisory
- https://huntr.dev/bounties/23d38099-71cd-42ed-a77a-71e68094adfaExploit, Issue Tracking, Patch, Third Party Advisory
- https://github.com/immerjs/immer/commit/fa671e55ee9bd42ae08cc239102b665a23958237Patch, Third Party Advisory
- https://huntr.dev/bounties/23d38099-71cd-42ed-a77a-71e68094adfaExploit, Issue Tracking, Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-3757?
immer is vulnerable to Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
How severe is CVE-2021-3757?
CVE-2021-3757 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.60% probability of exploitation in the next 30 days.
How do I fix CVE-2021-3757?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2021
- CVE-2021-37564MediaTek microchips, as used in NETGEAR devices through 2021…7.5
- CVE-2021-37565MediaTek microchips, as used in NETGEAR devices through 2021…7.5
- CVE-2021-37566MediaTek microchips, as used in NETGEAR devices through 2021…8.8
- CVE-2021-37567MediaTek microchips, as used in NETGEAR devices through 2021…7.5
- CVE-2021-37568MediaTek microchips, as used in NETGEAR devices through 2021…8.8
- CVE-2021-37569MediaTek microchips, as used in NETGEAR devices through 2021…8.8
- CVE-2021-37570MediaTek microchips, as used in NETGEAR devices through 2021…7.5
- CVE-2021-37571MediaTek microchips, as used in NETGEAR devices through 2021…8.8
- CVE-2021-37572MediaTek microchips, as used in NETGEAR devices through 2021…7.5
- CVE-2021-37573A reflected cross-site scripting (XSS) vulnerability in the …6.1
- CVE-2021-37576arch/powerpc/kvm/book3s_rtas.c in the Linux kernel through 5…7.8
- CVE-2021-37577Bluetooth LE and BR/EDR Secure Connections pairing and Secur…6.8
Are you affected by CVE-2021-3757?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST