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01 Record

CVE-2018-1503

IBM WebSphere MQ 7.5, 8.0, and 9.0 could allow a remotely authenticated attacker to to send invalid or malformed headers that could cause messages to no longer be transmitted via the affected channel.

MediumPUBLISHEDCNA: ibm
CNA base score4.3 CVSS v3.xCVSS:3.0/A:L/AC:L/AV:N/C:N/I:N/PR:L/S:U/UI:N/E:U/RC:C/RL:O
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02 Description

IBM WebSphere MQ 7.5, 8.0, and 9.0 could allow a remotely authenticated attacker to to send invalid or malformed headers that could cause messages to no longer be transmitted via the affected channel.

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
1.99% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 80.3% of scored records. A rank, not a probability.
NVD base score
4.3 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2018-07-23 13:00Z8 YR AGO
Last updated
2024-09-16 17:59Z2 YR AGO
Reserved
2017-12-13
Assigning CNA
ibm
Record state
PUBLISHED
Severity
Medium (CVSS 4.3)
CNA CVSS vector
CVSS:3.0/A:L/AC:L/AV:N/C:N/I:N/PR:L/S:U/UI:N/E:U/RC:C/RL:O
Weaknesses
  • CWE-20Improper Input ValidationClass
Data version
5.1
Document digest
fa1a318adbbc31222ea297973da55af1265c979aa082da7a9d89fd40efb1e839

05 Affected products

VendorProductVersionsPlatforms
IBMWebSphere MQ7.5, 8.0, 9.0—

06 References