Certain HP DesignJet products may be potentially vulnerable to cross-site scripting (XSS), which may allow unauthenticated HTTP requests to view print job previews.
CVE-2026-18243
This medium-severity CVE scores 6.9 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3% (19th percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
No fix is confirmed yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for the fix.
- CVSS v3
- 6.9
- EG Score
- 6.9MEDIUMmedium confidence
- EG Risk
- 31EG Risk 31/100CISA SSVC
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity69% × 45%Exploitation0% × 40%Automatability0% × 15%CISA SSVC: Track at every mission impact level.Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix. - EPSS PROB
- 0.3%
- EPSS %ILE
- 19th
- KEV
- Not listed
CISA SSVCTrack at every mission impact level.
No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table
Published
August 3, 2026
Last Modified
August 3, 2026
References (1)
- hp-security-alert@hphttps://support.hp.com/us-en/document/ish_15348281-15348304-16
Vendor Advisories for CVE-2026-18243(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 13× in last 7d / 62× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 154 total refreshes for this CVE.
- 2026-10-04 23:21 UTCEPSS rescore
- 2026-10-04 06:19 UTCEG score recompute
- 2026-10-04 06:19 UTCGHSA enrichment
- 2026-10-03 14:25 UTCEPSS rescore
- 2026-10-02 10:18 UTCEG score recompute
- 2026-10-02 10:18 UTCGHSA enrichment
- 2026-10-01 19:49 UTCEPSS rescore
- 2026-10-01 02:33 UTCEG score recompute
- 2026-10-01 02:33 UTCGHSA enrichment
- 2026-09-30 15:02 UTCEPSS rescore
- 2026-09-29 15:20 UTCEPSS rescore
- 2026-09-29 06:39 UTCEG score recompute
- 2026-09-29 06:39 UTCGHSA enrichment
- 2026-09-28 13:51 UTCEPSS rescore
- 2026-09-27 18:15 UTCEG score recompute
- 2026-09-27 18:15 UTCGHSA enrichment
- 2026-09-27 13:47 UTCEPSS rescore
- 2026-09-26 15:58 UTCEPSS rescore
- 2026-09-25 07:24 UTCEG score recompute
- 2026-09-25 07:24 UTCGHSA enrichment
- 2026-09-24 06:44 UTCEG score recompute
- 2026-09-24 06:44 UTCGHSA enrichment
- 2026-09-23 06:05 UTCEG score recompute
- 2026-09-23 06:05 UTCGHSA enrichment
- 2026-09-22 05:26 UTCEG score recompute
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- 2026-09-22 05:25 UTCGHSA enrichment
- 2026-09-20 04:24 UTCEG score recompute
- 2026-09-20 04:24 UTCGHSA enrichment
- 2026-09-19 03:45 UTCEG score recompute
- 2026-09-19 03:44 UTCGHSA enrichment
- 2026-09-18 19:27 UTCEPSS rescore
- 2026-09-18 01:54 UTCEG score recompute
- 2026-09-18 01:54 UTCGHSA enrichment
- 2026-09-17 01:14 UTCEG score recompute
- 2026-09-17 01:14 UTCGHSA enrichment
- 2026-09-16 14:07 UTCEPSS rescore
- 2026-09-16 05:14 UTCEPSS rescore
- 2026-09-15 16:56 UTCEG score recompute
- 2026-09-15 16:56 UTCGHSA enrichment
- 2026-09-14 10:13 UTCEG score recompute
- 2026-09-14 10:13 UTCGHSA enrichment
- 2026-09-13 16:46 UTCEPSS rescore
- 2026-09-13 09:24 UTCEG score recompute
- 2026-09-13 09:24 UTCGHSA enrichment
- 2026-09-12 15:00 UTCEPSS rescore
- 2026-09-12 08:44 UTCEG score recompute
- 2026-09-12 08:44 UTCGHSA enrichment
- 2026-09-11 14:52 UTCEPSS rescore
- 2026-09-11 09:36 UTCEPSS rescore
- 2026-09-11 08:05 UTCEG score recompute
- 2026-09-11 08:04 UTCGHSA enrichment
- 2026-09-10 09:34 UTCEPSS rescore
- 2026-09-10 07:24 UTCGHSA enrichment
- 2026-09-09 06:45 UTCEG score recompute
- 2026-09-09 06:45 UTCGHSA enrichment
- 2026-09-08 22:00 UTCEPSS rescore
- 2026-09-07 18:52 UTCEG score recompute
- 2026-09-07 18:52 UTCGHSA enrichment
- 2026-09-07 16:01 UTCEPSS rescore
- 2026-09-06 13:47 UTCEPSS rescore
- 2026-09-06 12:26 UTCEG score recompute
- 2026-09-06 12:26 UTCGHSA enrichment
- 2026-09-05 11:25 UTCEG score recompute
- 2026-09-05 11:25 UTCGHSA enrichment
- 2026-09-04 10:16 UTCEG score recompute
- 2026-09-04 10:16 UTCGHSA enrichment
- 2026-09-04 05:06 UTCEPSS rescore
- 2026-09-03 08:47 UTCEG score recompute
- 2026-09-03 08:47 UTCGHSA enrichment
- 2026-09-02 14:11 UTCEPSS rescore
- 2026-09-02 00:00 UTCEG score recompute
- 2026-09-02 00:00 UTCGHSA enrichment
- 2026-09-01 13:53 UTCEPSS rescore
- 2026-09-01 04:39 UTCEPSS rescore
- 2026-08-31 23:20 UTCGHSA enrichment
- 2026-08-30 22:40 UTCEG score recompute
- 2026-08-30 22:40 UTCGHSA enrichment
- 2026-08-30 19:17 UTCEPSS rescore
- 2026-08-30 01:22 UTCEPSS rescore
- 2026-08-29 22:01 UTCEG score recompute
- 2026-08-29 22:01 UTCGHSA enrichment
- 2026-08-28 21:41 UTCEPSS rescore
- 2026-08-27 14:25 UTCEPSS rescore
- 2026-08-27 11:10 UTCEG score recompute
- 2026-08-27 11:10 UTCGHSA enrichment
- 2026-08-26 14:46 UTCEPSS rescore
- 2026-08-26 10:26 UTCEG score recompute
- 2026-08-26 10:26 UTCGHSA enrichment
- 2026-08-25 13:48 UTCEPSS rescore
- 2026-08-25 09:19 UTCEG score recompute
- 2026-08-25 09:19 UTCGHSA enrichment
- 2026-08-24 08:39 UTCGHSA enrichment
- 2026-08-23 07:51 UTCEG score recompute
- 2026-08-23 07:51 UTCGHSA enrichment
- 2026-08-23 00:19 UTCEPSS rescore
- 2026-08-22 07:12 UTCEG score recompute
- 2026-08-22 07:12 UTCGHSA enrichment
- 2026-08-21 23:49 UTCEPSS rescore
- 2026-08-21 06:32 UTCEG score recompute
- 2026-08-21 06:32 UTCGHSA enrichment
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Frequently asked(5)
What is CVE-2026-18243?
When was CVE-2026-18243 disclosed?
Is CVE-2026-18243 actively exploited?
What is the CVSS score of CVE-2026-18243?
How do I remediate CVE-2026-18243?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-18243
Is Your Infrastructure Affected by CVE-2026-18243?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.