How severe is CVE-2021-44988?

CVE-2021-44988 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-44988 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-44988?

CVE-2021-44988 affects Jerryscript. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-44988?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-44988 published?

CVE-2021-44988 was published on 2022-01-25 and last updated on 2026-06-17.

CVE-2021-44988

CVE-2021-44988 is a high-severity vulnerability in Jerryscript with a CVSS 3.x base score of 7.8. 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-770.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 6.8
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-770
Affected product: Jerryscript
Published: 2022-01-25
Last modified: 2026-06-17

Description

Jerryscript v3.0.0 and below was discovered to contain a stack overflow via ecma_find_named_property in ecma-helpers.c.

Frequently asked questions

What is CVE-2021-44988?: Jerryscript v3.0.0 and below was discovered to contain a stack overflow via ecma_find_named_property in ecma-helpers.c.
How severe is CVE-2021-44988?: CVE-2021-44988 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-44988 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-44988?: CVE-2021-44988 affects Jerryscript. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-44988?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-44988 published?: CVE-2021-44988 was published on 2022-01-25 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:jerryscript:jerryscript:3.0.0:*:*:*:*:*:*:*

More vulnerabilities in Jerryscript

CVE-2023-36109 — Critical (CVSS 9.8): Buffer Overflow vulnerability in JerryScript version 3.0, allows remote attackers to execute arbitrary code via…
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CVE-2020-22597 — Critical (CVSS 9.8): An issue in Jerrscript- project Jerryscrip v. 2.3.0 allows a remote attacker to execute arbitrary code via the…
CVE-2021-42863 — Critical (CVSS 9.8): A buffer overflow in ecma_builtin_typedarray_prototype_filter() in JerryScript version fe3a5c0 allows an attacker to…
CVE-2021-43453 — Critical (CVSS 9.8): A Heap-based Buffer Overflow vulnerability exists in JerryScript 2.4.0 and prior versions via an out-of-bounds read in…
CVE-2021-41752 — Critical (CVSS 9.8): Stack overflow vulnerability in Jerryscript before commit e1ce7dd7271288be8c0c8136eea9107df73a8ce2 on Oct 20, 2021 due…

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