Is CVE-2021-29883 in the CISA KEV catalog?

No. CVE-2021-29883 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-29883?

CVE-2021-29883 has a CVSS v3 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2021-29883?

CVE-2021-29883 has an EPSS score of 0.52% (40th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-29883?

Upgrade transformation extender advanced to 10.0.15 or later.

CVE & CISA-KEV Catalog

CVE-2021-29883

MEDIUM

4.3

CVSS v3

NVD

Description

IBM Standards Processing Engine (IBM Transformation Extender Advanced 9.0 and 10.0) does not set the secure attribute on authorization tokens or session cookies. Attackers may be able to get the cookie values by sending a http:// link to a user or by planting this link in a site the user goes to. The cookie will be sent to the insecure link and the attacker can then obtain the cookie value by snooping the traffic. IBM X-Force ID: 207090.

CWE-311

How to fix

Remediation Available

transformation extender advancedNVD

Affected:>= 10.0.0, < 10.0.15Fixed in:10.0.15CVE-2021-29883derived from NVD

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 VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

0.52%probability of exploitation in 30 days

40thpercentile

Moderate risk: more likely to be exploited than 40% of all known CVEs.

References

Patch1

ibm.com

Vendor Advisory1

exchange.xforce.ibmcloud.com

Related Vulnerabilities

Other CWE-311 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2026-27944	Critical	9.8	22%	-	Fix
CVE-2026-34486	High	7.5	16%	-	-
CVE-2019-11367	Critical	9.8	2.8%	-	Fix
CVE-2017-8221	High	7.5	2.7%	-	-
CVE-2016-10593	High	8.1	2.3%	-	-
CVE-2018-10698	Critical	9.8	2.3%	-	-

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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.