How severe is CVE-2024-40686?

CVE-2024-40686 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2024-40686 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-40686?

CVE-2024-40686 primarily affects Ibm Smartcloud Analytics Log Analysis. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-40686?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2024-40686 have an EU (EUVD) identifier?

Yes. CVE-2024-40686 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-54813.

When was CVE-2024-40686 published?

CVE-2024-40686 was published on 2025-07-23 and last updated on 2026-06-17.

CVE-2024-40686

CVE-2024-40686 is a medium-severity vulnerability in Ibm Smartcloud Analytics Log Analysis with a CVSS 3.x base score of 5.4. 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-644.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
EPSS exploit prediction: 0% (8th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-54813
Weakness: CWE-644
Affected product: Ibm Smartcloud Analytics Log Analysis
Published: 2025-07-23
Last modified: 2026-06-17

Description

IBM SmartCloud Analytics - Log Analysis 1.3.7.0, 1.3.7.1, 1.3.7.2, 1.3.8.0, 1.3.8.1, and 1.3.8.2 is vulnerable to HTTP header injection, caused by improper validation of input by the HOST headers. This could allow an attacker to conduct various attacks against the vulnerable system, including cross-site scripting, cache poisoning or session hijacking.

Frequently asked questions

What is CVE-2024-40686?: IBM SmartCloud Analytics - Log Analysis 1.3.7.0, 1.3.7.1, 1.3.7.2, 1.3.8.0, 1.3.8.1, and 1.3.8.2 is vulnerable to HTTP header injection, caused by improper validation of input by the HOST headers. This could allow an attacker to conduct various attacks against the vulnerable system, including cross-site scripting, cache poisoning or session hijacking.
How severe is CVE-2024-40686?: CVE-2024-40686 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2024-40686 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-40686?: CVE-2024-40686 primarily affects Ibm Smartcloud Analytics Log Analysis. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-40686?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-40686 have an EU (EUVD) identifier?: Yes. CVE-2024-40686 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-54813.
When was CVE-2024-40686 published?: CVE-2024-40686 was published on 2025-07-23 and last updated on 2026-06-17.

References

https://www.ibm.com/support/pages/node/7240270

Affected products (6)

cpe:2.3:a:ibm:smartcloud_analytics_log_analysis:1.3.7.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:smartcloud_analytics_log_analysis:1.3.7.1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:smartcloud_analytics_log_analysis:1.3.7.2:*:*:*:*:*:*:*
cpe:2.3:a:ibm:smartcloud_analytics_log_analysis:1.3.8.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:smartcloud_analytics_log_analysis:1.3.8.1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:smartcloud_analytics_log_analysis:1.3.8.2:*:*:*:*:*:*:*

More vulnerabilities in Ibm Smartcloud Analytics Log Analysis

CVE-2019-4244 — Critical (CVSS 9.1): IBM SmartCloud Analytics 1.3.1 through 1.3.5 could allow a remote attacker to gain unauthorized information and…
CVE-2024-40682 — Medium (CVSS 6.2): IBM SmartCloud Analytics - Log Analysis 1.3.7.0, 1.3.7.1, 1.3.7.2, 1.3.8.0, 1.3.8.1, and 1.3.8.2 could allow a local…
CVE-2019-4215 — Medium (CVSS 6.1): IBM SmartCloud Analytics 1.3.1 through 1.3.5 could allow a remote attacker to hijack the clicking action of the victim.…
CVE-2024-41751 — Medium (CVSS 5.5): IBM SmartCloud Analytics - Log Analysis 1.3.7.0, 1.3.7.1, 1.3.7.2, 1.3.8.0, 1.3.8.1, and 1.3.8.2 could allow a local,…
CVE-2024-41750 — Medium (CVSS 5.5): IBM SmartCloud Analytics - Log Analysis 1.3.7.0, 1.3.7.1, 1.3.7.2, 1.3.8.0, 1.3.8.1, and 1.3.8.2 could allow a local,…
CVE-2019-4216 — Medium (CVSS 4.6): IBM SmartCloud Analytics 1.3.1 through 1.3.5 is vulnerable to possible host header injection attack that could lead to…

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