Is CVE-2021-41496 in the CISA KEV catalog?

No. CVE-2021-41496 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-41496?

CVE-2021-41496 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2021-41496?

CVE-2021-41496 has an EPSS score of 0.37% (29th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-41496?

Upgrade numpy on ubuntu 20.04 to 1:1.17.4-5ubuntu3.1 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2021-41496

MEDIUM

5.5

CVSS v3

NVD

Description

Buffer overflow in the array_from_pyobj function of fortranobject.c in NumPy < 1.19, which allows attackers to conduct a Denial of Service attacks by carefully constructing an array with negative values. NOTE: The vendor does not agree this is a vulnerability; the negative dimensions can only be created by an already privileged user (or internally)

CWE-120Classic Buffer Overflow

How to fix

Remediation Available

numpyUbuntu

Fixed in:1:1.17.4-5ubuntu3.1USN-5763-1

Fixed in:1:1.21.5-1ubuntu22.04.1USN-5763-1

Fixed in:1:1.21.5-1ubuntu22.10.1USN-5763-1

python3-numpyUbuntu

Fixed in:1:1.17.4-5ubuntu3.1USN-5763-1

Fixed in:1:1.21.5-1ubuntu22.04.1USN-5763-1

Fixed in:1:1.21.5-1ubuntu22.10.1USN-5763-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

0.37%probability of exploitation in 30 days

29thpercentile

Low risk: more likely to be exploited than 29% of all known CVEs.

References

Patch1

github.com

Third-Party Advisory1

oracle.com

Related Vulnerabilities

Other CWE-120 (Classic Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-0195	Medium	6.8	100%	-	Fix
CVE-2017-7269	Critical	9.8	100%	KEV	-
CVE-2019-11043	High	8.7	99%	KEV + Ransom	Fix
CVE-2011-4862	High	10.0	95%	-	Fix
CVE-2007-5659	High	7.8	94%	KEV	Fix
CVE-2022-3786	High	7.5	91%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.