SerenityOS is a hobby operating system developed as an educational project, with its vulnerability footprint concentrated in a single product spanning kernel, userspace utilities, and application frameworks. The recurring weaknesses—classic buffer overflows, path traversal, memory-boundary violations, integer overflows, and out-of-bounds writes—reflect the memory-safety challenges inherent to a from-scratch OS implementation in C++, and vulnerabilities affecting the project skew strongly toward critical severity. Defenders tracking this vendor should recognize its niche deployment context; live severity, exploitation, and exposure counts are shown alongside this summary.
The number and severity of CVEs published that impact products developed by Serenityos over time
Signals from CVEs in this vendor scope (8 CVEs).
8 CVEs · Highest risk first
| CVE | Published | CVSS | Risk | KEV | Exploit |
|---|---|---|---|---|---|
CVE-2021-31272CRITICAL SerenityOS before commit 3844e8569689dd476064a0759d704bc64fb3ca2c contains a directory traversal vulnerability in tar/unzip that may lead to command execution or privilege escalati | Jun 18, 2021 | 9.8 | 31 | NO | NO |
CVE-2021-4327CRITICAL 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/Libr | Mar 1, 2023 | 9.8 | 29 | NO | NO |
CVE-2021-30045CRITICAL SerenityOS 2021-03-27 contains a buffer overflow vulnerability in the EndOfCentralDirectory::read() function. | Apr 6, 2021 | 9.1 | 28 | NO | NO |
CVE-2021-33185HIGH SerenityOS contains a buffer overflow in the set_range test in TestBitmap which could allow attackers to obtain sensitive information. | Jun 18, 2021 | 7.5 | 25 | NO | NO |
CVE-2021-28874HIGH SerenityOS fixed as of c9f25bca048443e317f1994ba9b106f2386688c3 contains a buffer overflow vulnerability in LibTextCode through opening a crafted file. | Apr 6, 2021 | 7.8 | 25 | NO | NO |
CVE-2019-20172HIGH Kernel/VM/MemoryManager.cpp in SerenityOS before 2019-12-30 does not reject syscalls with pointers into the kernel-only virtual address space, which allows local users to gain priv | Dec 31, 2019 | 7.8 | 25 | NO | NO |
CVE-2021-33186HIGH SerenityOS in test-crypto.cpp contains a stack buffer overflow which could allow attackers to obtain sensitive information. | Jun 18, 2021 | 7.5 | 24 | NO | NO |
CVE-2021-27343HIGH SerenityOS Unspecified is affected by: Buffer Overflow. The impact is: obtain sensitive information (context-dependent). The component is: /Userland/Libraries/LibCrypto/ASN1/DER.h | Apr 6, 2021 | 7.5 | 24 | NO | NO |
Signals from CVEs in this vendor scope (8 CVEs).
An overview of all social media posts that mention a CVE ID that affects a product developed by Serenityos.
Media articles that mention a CVE ID that affects a product developed by Serenityos — matched by CVE ID, not by vendor name.