CVE-2021-4327
A vulnerability was found in SerenityOS.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.93%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A vulnerability was found in SerenityOS. It has been rated as critical. Affected by this issue is the function initialize_typed_array_from_array_buffer in the library Userland/Libraries/LibJS/Runtime/TypedArray.cpp. The manipulation leads to integer overflow. The exploit has been disclosed to the public and may be used. Continious delivery with rolling releases is used by this product. Therefore, no version details of affected nor updated releases are available. The patch is identified as f6c6047e49f1517778f5565681fb64750b14bf60. It is recommended to apply a patch to fix this issue. VDB-222074 is the identifier assigned to this vulnerability.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.93% probability · 60th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-190
- Affected
- serenityos/serenityos
- Source
- cna@vuldb.com
EPSS 0.9% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://devcraft.io/2021/02/11/serenityos-writing-a-full-chain-exploit.htmlExploit, Third Party Advisory
- https://github.com/SerenityOS/serenity/commit/f6c6047e49f1517778f5565681fb64750b14bf60Patch
- https://vuldb.com/?ctiid.222074Permissions Required, Third Party Advisory
- https://vuldb.com/?id.222074Permissions Required, Third Party Advisory
- https://devcraft.io/2021/02/11/serenityos-writing-a-full-chain-exploit.htmlExploit, Third Party Advisory
- https://github.com/SerenityOS/serenity/commit/f6c6047e49f1517778f5565681fb64750b14bf60Patch
- https://vuldb.com/?ctiid.222074Permissions Required, Third Party Advisory
- https://vuldb.com/?id.222074Permissions Required, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.