CVE-2021-27377
CVE-2021-27377 is a critical-severity vulnerability in Yottadb with a CVSS 3.x base score of 9.8. 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-416.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- CVSS v2: 7.5
- EPSS exploit prediction: 1% (67th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-416
- Affected product: Yottadb
- Published:
- Last modified:
Description
An issue was discovered in the yottadb crate before 1.2.0 for Rust. For some memory-allocation patterns, ydb_subscript_next_st and ydb_subscript_prev_st have a use-after-free.
Frequently asked questions
- What is CVE-2021-27377?
- An issue was discovered in the yottadb crate before 1.2.0 for Rust. For some memory-allocation patterns, ydb_subscript_next_st and ydb_subscript_prev_st have a use-after-free.
- How severe is CVE-2021-27377?
- CVE-2021-27377 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2021-27377 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-27377?
- CVE-2021-27377 affects Yottadb. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-27377?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2021-27377 published?
- CVE-2021-27377 was published on 2021-02-18 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:yottadb:yottadb:*:*:*:*:*:rust:*:*
More vulnerabilities in Yottadb
- CVE-2021-44486 — Critical (CVSS 9.8): An issue was discovered in YottaDB through r1.32 and V7.0-000. Using crafted input, attackers can manipulate the value…
- CVE-2021-44488 — Critical (CVSS 9.1): An issue was discovered in YottaDB through r1.32 and V7.0-000. Using crafted input, attackers can control the size and…
- CVE-2021-44495 — High (CVSS 7.5): An issue was discovered in YottaDB through r1.32 and V7.0-000 and FIS GT.M through V7.0-000. Using crafted input, an…
- CVE-2021-44494 — High (CVSS 7.5): An issue was discovered in YottaDB through r1.32 and V7.0-000 and FIS GT.M through V7.0-000. Using crafted input, an…
- CVE-2021-44493 — High (CVSS 7.5): An issue was discovered in YottaDB through r1.32 and V7.0-000 and FIS GT.M through V7.0-000. Using crafted input, an…
- CVE-2021-44492 — High (CVSS 7.5): An issue was discovered in YottaDB through r1.32 and V7.0-000 and FIS GT.M through V7.0-000. Using crafted input,…
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