CVE-2021-29997
CVE-2021-29997 is a medium-severity vulnerability in Windriver Vxworks with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-125.
Key facts
- Severity: Medium (CVSS 3.x base score 5.3)
- CVSS v2: 5.0
- EPSS exploit prediction: 1% (60th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-125
- Affected product: Windriver Vxworks
- Published:
- Last modified:
Description
An issue was discovered in Wind River VxWorks 7 before 21.03. A specially crafted packet may lead to buffer over-read on IKE.
Frequently asked questions
- What is CVE-2021-29997?
- An issue was discovered in Wind River VxWorks 7 before 21.03. A specially crafted packet may lead to buffer over-read on IKE.
- How severe is CVE-2021-29997?
- CVE-2021-29997 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
- Is CVE-2021-29997 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-29997?
- CVE-2021-29997 affects Windriver Vxworks. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-29997?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-29997 published?
- CVE-2021-29997 was published on 2021-04-13 and last updated on 2026-06-17.
References
- https://support2.windriver.com/index.php?page=cve&on=view&id=CVE-2021-29997
- https://support2.windriver.com/index.php?page=security-notices
Affected products (1)
- cpe:2.3:o:windriver:vxworks:*:*:*:*:*:*:*:*
More vulnerabilities in Windriver Vxworks
- CVE-2013-0714 — Critical (CVSS 10.0): IPSSH (aka the SSH server) in Wind River VxWorks 6.5 through 6.9 allows remote attackers to execute arbitrary code or…
- CVE-2020-35198 — Critical (CVSS 9.8): An issue was discovered in Wind River VxWorks 7. The memory allocator has a possible integer overflow in calculating a…
- CVE-2021-29999 — Critical (CVSS 9.8): An issue was discovered in Wind River VxWorks through 6.8. There is a possible stack overflow in dhcp server.
- CVE-2021-29998 — Critical (CVSS 9.8): An issue was discovered in Wind River VxWorks before 6.5. There is a possible heap overflow in dhcp client.
- CVE-2016-20009 — Critical (CVSS 9.8): A DNS client stack-based buffer overflow in ipdnsc_decode_name() affects Wind River VxWorks 6.5 through 7. NOTE: This…
- CVE-2019-12262 — Critical (CVSS 9.8): Wind River VxWorks 6.6, 6.7, 6.8, 6.9 and 7 has Incorrect Access Control in the RARP client component. IPNET security…
All CVEs affecting Windriver Vxworks →
Other CWE-125 (Out-of-bounds Read) vulnerabilities
- CVE-2026-24826 — Critical (CVSS 10.0): Out-of-bounds Write, Divide By Zero, NULL Pointer Dereference, Use of Uninitialized Resource, Out-of-bounds Read,…
- CVE-2024-22004 — Critical (CVSS 10.0): Due to length check, an attacker with privilege access on a Linux Nonsecure operating system can trigger a…
- CVE-2021-41556 — Critical (CVSS 10.0): sqclass.cpp in Squirrel through 2.2.5 and 3.x through 3.1 allows an out-of-bounds read (in the core interpreter) that…
- CVE-2021-21777 — Critical (CVSS 10.0): An information disclosure vulnerability exists in the Ethernet/IP UDP handler functionality of EIP Stack Group OpENer…
- CVE-2017-14451 — Critical (CVSS 10.0): An exploitable out-of-bounds read vulnerability exists in libevm (Ethereum Virtual Machine) of CPP-Ethereum. A…
- CVE-2013-0767 — Critical (CVSS 10.0): The nsSVGPathElement::GetPathLengthScale function in Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and…