How severe is CVE-2018-5236?

CVE-2018-5236 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2018-5236 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-5236?

CVE-2018-5236 primarily affects Symantec Endpoint Protection. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-5236?

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

When was CVE-2018-5236 published?

CVE-2018-5236 was published on 2018-06-20 and last updated on 2026-06-17.

CVE-2018-5236

CVE-2018-5236 is a medium-severity vulnerability in Symantec Endpoint Protection with a CVSS 3.x base score of 5.3. 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-362.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 3.5
EPSS exploit prediction: 1% (61st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-362
Affected product: Symantec Endpoint Protection
Published: 2018-06-20
Last modified: 2026-06-17

Description

Symantec Endpoint Protection prior to 14 RU1 MP1 or 12.1 RU6 MP10 may be susceptible to a race condition (or race hazard). This type of issue occurs in software where the output is dependent on the sequence or timing of other uncontrollable events.

Frequently asked questions

What is CVE-2018-5236?: Symantec Endpoint Protection prior to 14 RU1 MP1 or 12.1 RU6 MP10 may be susceptible to a race condition (or race hazard). This type of issue occurs in software where the output is dependent on the sequence or timing of other uncontrollable events.
How severe is CVE-2018-5236?: CVE-2018-5236 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2018-5236 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-5236?: CVE-2018-5236 primarily affects Symantec Endpoint Protection. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-5236?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-5236 published?: CVE-2018-5236 was published on 2018-06-20 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:symantec:endpoint_protection:*:*:*:*:*:*:*:*
cpe:2.3:a:symantec:endpoint_protection:12.1:ru6mp10:*:*:*:*:*:*
cpe:2.3:a:symantec:endpoint_protection:14.0:ru1mp1:*:*:*:*:*:*

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