Notepad++ is a free and open-source source code editor. Prior to 8.9.6.1, the tag in config.xml is read by NppXml::value() (Parameters.cpp:6430) and stored in _nppGUI._commandLineInterpreter without any validation, whitelist, or digital signature check. When the user triggers IDM_FILE_OPEN_CMD (File → Open Containing Folder → cmd), NppCommands.cpp:228 creates a Command object with this value and calls run(), which invokes ShellExecute (RunDlg.cpp:221) with the attacker-controlled string as the executable path. This vulnerability is fixed in 8.9.6.1.
CVE-2026-48778
“—” beside the score: it is equal to the CVSS score beside it.
This high-severity CVE scores 7.8 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.6% (49th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.
Also known asEUVD-2026-39907 (ENISA EUVD)Source: ENISA EUVD
- Public exploit or proof-of-concept code is available
The CVE record names the fixed release — apply it.
- CVSS v3
- 7.8
- EG Score
- 7.8HIGHmedium confidence
- EG Risk
- 51EG Risk 51/100
EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.
How it’s computed (value × EchelonGraph’s weight)Severity78% × 45%Impact severity (EG Severity): CVSS 7.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.Exploitation40% × 40%EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.Automatability0% × 15%CISA's SSVC Automatable value: no (Vulnrichment).SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.Action: The CVE record names the fixed release. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high. - EPSS PROB
- 0.6%
- EPSS %ILE
- 49th
- KEV
- Not listed
What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)
The EG score (7.8): severity, escalated by confirmed exploitation. This CVE's 7.8 is its impact severity (EG Severity), not escalated.
- EG Severity
- 7.8 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.a secondary CVSS source · CVSS v3.0 or v3.1
- EG Likelihood
- 0.6% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-24). FIRST's exploitation probability, not an EchelonGraph model.
- Confirmed exploitation
- None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
- EG Priority
- SSVC Track* at medium mission impactTrack at low, Track* at medium and Attend at high mission impact.CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.
SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Track* at medium and Attend at high mission impact.
The CVE record names the fixed release. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table
BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.
In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it
Published
June 26, 2026
Last Modified
June 29, 2026
Advisory Details (2)
Auto-updated Jun 26, 2026Arbitrary Code Execution via "commandLineInterpreter" of config.xml · Advisory · notepad-plus-plus/notepad-plus-plus · GitHub
https://github.com/notepad-plus-plus/notepad-plus-plus/security/advisories/GHSA-7hm3-wp5q-ccv9commit 24c7b5c63cec (notepad-plus-plus/notepad-plus-plus)
Fix landed in notepad-plus-plus/notepad-plus-plus commit 24c7b5c63cec — awaiting tagged release
https://github.com/notepad-plus-plus/notepad-plus-plus/commit/24c7b5c63cece76dbc8c4f2607a27ebfe22fa614Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 9× in last 7d / 37× in last 30d)
Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.
Showing the most recent 100 of 155 refreshes on record for this CVE.
A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 55 oldest rows on record are not shown and were not checked, so the counts can still include repeats.
- 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.6% · 49th percentile
- 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.6% · 49th percentile
- 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.6% · 49th percentile
- 2026-10-25 14:23 UTCEG score recompute
- 2026-10-25 00:33 UTCEG score recompute
- 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.6% · 49th percentile
- 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.6% · 49th percentile
- 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.6% · 49th percentile
- 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.6% · 49th percentile
- 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-10-18 03:34 UTCEG score recompute
- 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-10-17 12:16 UTCEG score recompute
- 2026-10-16 16:42 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-10-13 20:54 UTCOSV refresh
- 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-10-12 16:00 UTCEG score recompute
- 2026-10-11 19:43 UTCEG score recompute
- 2026-10-11 16:58 UTCEG score recompute
- 2026-10-11 14:22 UTCEG score recompute
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- 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-09-26 00:27 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-09-23 07:48 UTCEG score recompute
- 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-09-18 07:10 UTCEG score recompute
- 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.6% · 48th percentile
- 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-09-14 01:00 UTCEG score recompute
- 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-09-12 15:33 UTCEG score recompute
- 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-09-06 15:00 UTCEG score recompute
- 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-08-30 19:19 UTCEG score recompute
- 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.6% · 46th percentile
- 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.6% · 46th percentile
- 2026-08-27 22:58 UTCEG score recompute
- 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-08-24 21:47 UTCEG score recompute
- 2026-08-23 08:31 UTCEG score recompute
- 2026-08-23 00:19 UTCEPSS rescoreEPSS 1.3% · 68th percentile
- 2026-08-22 09:24 UTCEG score recompute
- 2026-08-21 23:49 UTCEPSS rescoreEPSS 1.3% · 68th percentile
- 2026-08-21 05:08 UTCEG score recompute
- 2026-08-20 22:55 UTCEPSS rescoreEPSS 1.3% · 68th percentile
- 2026-08-20 06:44 UTCEG score recompute
- 2026-08-19 17:04 UTCEPSS rescoreEPSS 1.3% · 68th percentile
- 2026-08-18 23:41 UTCEG score recompute
- 2026-08-18 13:48 UTCEPSS rescoreEPSS 1.3% · 68th percentile
- 2026-08-17 13:47 UTCEPSS rescoreEPSS 1.3% · 68th percentile
- 2026-08-17 00:27 UTCEG score recompute
- 2026-08-16 14:56 UTCEPSS rescoreEPSS 1.3% · 68th percentile
- 2026-08-16 13:17 UTCEG score recompute
- 2026-08-16 02:14 UTCEPSS rescoreEPSS 1.3% · 68th percentile
- 2026-08-15 03:50 UTCEG score recompute
- 2026-08-15 01:30 UTCEPSS rescoreEPSS 1.3% · 68th percentile
- 2026-08-14 05:31 UTCEG score recompute
- 2026-08-13 22:00 UTCEPSS rescoreEPSS 1.3% · 68th percentile
- 2026-08-12 18:44 UTCEG score recompute
- 2026-08-12 13:51 UTCEPSS rescoreEPSS 1.3% · 68th percentile
- 2026-08-11 20:26 UTCEG score recompute
- 2026-08-11 09:17 UTCEG score recompute
- 2026-08-11 00:00 UTCEPSS rescoreEPSS 1.3% · 67th percentile
- 2026-08-09 23:47 UTCEG score recompute
- 2026-08-09 13:46 UTCEPSS rescoreEPSS 1.3% · 67th percentile
- 2026-08-09 01:30 UTCEG score recompute
- 2026-08-08 16:37 UTCEPSS rescoreEPSS 1.3% · 67th percentile
- 2026-08-08 03:11 UTCEG score recompute
- 2026-08-06 17:44 UTCEG score recompute
- 2026-08-06 13:47 UTCEPSS rescoreEPSS 1.3% · 67th percentile
Publicly available exploits
(2 references)Public exploit code is referenced for this CVE (1 Exploit-DB entry, 1 GitHub PoC). Defenders should treat patch urgency accordingly.
- Exploit-DBEDB-52606Published May 30, 2026
Notepad++ 8.9.6 - Arbitrary Code Execution
Open source ↗ - GitHub PoCXK3NF4/CVE-2026-48778Published May 30, 2026
Notepad++ RCE via config.xml commandLineInterpreter
Open source ↗
Related CVEs(same CWE)
Frequently asked(5)
What is CVE-2026-48778?
When was the CVE record for CVE-2026-48778 published?
Is CVE-2026-48778 actively exploited?
What is the CVSS score of CVE-2026-48778?
How do I remediate CVE-2026-48778?
Dependency Blast Radius
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