CVE-2018-5530

mediumpriority · track · 31EPSS 0.018 · 78 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.76% (78th) EPSS

CVSS 5 · medium

Is it mine?

30 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

F5 BIG-IP 13.0.0-13.1.0.5, 12.1.0-12.1.3.5, or 11.6.0-11.6.3.1 virtual servers with HTTP/2 profiles enabled are vulnerable to "HPACK Bomb".

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.07.5highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.06.9mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-400USprimary

affected products (30)

Products and version ranges known to be affected.

F5 Networks, Inc. BIG-IP (LTM, AAM, AFM, Analytics, APM, ASM, Edge Gateway, PEM, WebSafe)≤ 12.1.0-12.1.3.5enisa_euvdEU
F5 Networks, Inc. BIG-IP (LTM, AAM, AFM, Analytics, APM, ASM, Edge Gateway, PEM, WebSafe)≤ 11.6.0-11.6.3.1enisa_euvdEU
F5 Networks, Inc. BIG-IP (LTM, AAM, AFM, Analytics, APM, ASM, Edge Gateway, PEM, WebSafe)≤ 13.0.0-13.1.0.5enisa_euvdEU
f5 big-ip access policy manager11.6.0 → 11.6.3.1nvdUScpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
f5 big-ip access policy manager12.1.0 → 12.1.3.5nvdUScpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
f5 big-ip access policy manager13.0.0 → 13.1.0.5nvdUScpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
f5 big-ip advanced firewall manager11.6.0 → 11.6.3.1nvdUScpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*
f5 big-ip advanced firewall manager12.1.0 → 12.1.3.5nvdUScpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*
f5 big-ip advanced firewall manager13.0.0 → 13.1.0.5nvdUScpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*
f5 big-ip analytics11.6.0 → 11.6.3.1nvdUScpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*
f5 big-ip analytics12.1.0 → 12.1.3.5nvdUScpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*
f5 big-ip analytics13.0.0 → 13.1.0.5nvdUScpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*
f5 big-ip application acceleration manager11.6.0 → 11.6.3.1nvdUScpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*
f5 big-ip application acceleration manager12.1.0 → 12.1.3.5nvdUScpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*
f5 big-ip application acceleration manager13.0.0 → 13.1.0.5nvdUScpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*
f5 big-ip application security manager11.6.0 → 11.6.3.1nvdUScpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*
f5 big-ip application security manager12.1.0 → 12.1.3.5nvdUScpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*
f5 big-ip application security manager13.0.0 → 13.1.0.5nvdUScpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*
f5 big-ip edge gateway11.6.0 → 11.6.3.1nvdUScpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:*
f5 big-ip edge gateway12.1.0 → 12.1.3.5nvdUScpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:*

showing 20 of 30

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2018-07-25modified 2026-06-17

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+9608 more

references (5)

External citations — patches, advisories, analysis.

https://support.f5.com/csp/article/K45611803 cnnvd
http://www.securityfocus.com/bid/104908 enisa_euvd
https://support.f5.com/csp/article/K45611803 enisa_euvd
http://www.securityfocus.com/bid/104908Third Party AdvisoryVDB Entrynvd
https://support.f5.com/csp/article/K45611803Vendor Advisorynvd

scry

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