CVE-2021-40683

Q: How do I fix CVE-2021-40683?

Upgrade enterprise application access to 2.5.3 or later.

Q: Is CVE-2021-40683 being actively exploited?

Not that we know of. CVE-2021-40683 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.44% is the estimated probability that it will be exploited in the next 30 days. That is higher than 36% of all scored CVEs.

Q: How severe is CVE-2021-40683?

CVE-2021-40683 has a CVSS v3 base score of 7.8, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

Q: What does CVE-2021-40683 affect?

Published advisories record a fix for enterprise application access (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

HIGH

7.8

CVSS v3

NVD

Description

In Akamai EAA (Enterprise Application Access) Client before 2.3.1, 2.4.x before 2.4.1, and 2.5.x before 2.5.3, an unquoted path may allow an attacker to hijack the flow of execution.

CWE-428

How to fix

Remediation Available

enterprise application accessNVD

Affected:>= 2.5.0, < 2.5.3Fixed in:2.5.3CVE-2021-40683derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

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 RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.44%probability of exploitation in 30 days

36thpercentile

Low risk: more likely to be exploited than 36% of all known CVEs.

References

Exploit1

akamai.com

Vendor Advisory1

akamai.com

Related Vulnerabilities

Other CWE-428 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-38408	Critical	9.8	80%	-	Fix
CVE-2020-15261	High	8.0	11%	-	Fix
CVE-2018-10619	High	7.8	2.8%	-	Fix
CVE-2019-17658	Critical	9.8	2.2%	-	-
CVE-2015-4173	Medium	6.9	2.1%	-	Fix
CVE-2023-39464	High	7.2	2.0%	-	-

Common questions

How do I fix CVE-2021-40683?

Upgrade enterprise application access to 2.5.3 or later.

Is CVE-2021-40683 being actively exploited?

Not that we know of. CVE-2021-40683 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.44% is the estimated probability that it will be exploited in the next 30 days. That is higher than 36% of all scored CVEs.

How severe is CVE-2021-40683?

CVE-2021-40683 has a CVSS v3 base score of 7.8, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2021-40683 affect?

Published advisories record a fix for enterprise application access (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

Embed a live status badge for CVE-2021-40683

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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.